Remove "stronger/weaker" policy color hints from object headers

Summary:
Fixes T13461. Some applications provide hints about policy strength in the header, but these hints are inconsistent and somewhat confusing. They don't make much sense for modern objects with Custom Forms, which don't have a single "default" policy.

Remove this feature since it seems to be confusing things more than illuminating them.

Test Plan:
- Viewed various objects, no longer saw colored policy hints.
- Grepped for all removed symbols.

Maniphest Tasks: T13461

Differential Revision: https://secure.phabricator.com/D20918

resources/celerity/map.php

···
   'names' => array(
     'conpherence.pkg.css' => '3c8a0668',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => '77de226f',
+    'core.pkg.css' => 'b88ac037',
     'core.pkg.js' => '705aec2c',
     'differential.pkg.css' => '607c84be',
     'differential.pkg.js' => '1b97518d',
···
     'rsrc/css/phui/phui-form-view.css' => '01b796c0',
     'rsrc/css/phui/phui-form.css' => '159e2d9c',
     'rsrc/css/phui/phui-head-thing.css' => 'd7f293df',
-    'rsrc/css/phui/phui-header-view.css' => 'b500eeea',
+    'rsrc/css/phui/phui-header-view.css' => 'be09cc83',
     'rsrc/css/phui/phui-hovercard.css' => '6ca90fa0',
     'rsrc/css/phui/phui-icon-set-selector.css' => '7aa5f3ec',
     'rsrc/css/phui/phui-icon.css' => '4cbc684a',
···
     'phui-form-css' => '159e2d9c',
     'phui-form-view-css' => '01b796c0',
     'phui-head-thing-view-css' => 'd7f293df',
-    'phui-header-view-css' => 'b500eeea',
+    'phui-header-view-css' => 'be09cc83',
     'phui-hovercard' => '074f0783',
     'phui-hovercard-view-css' => '6ca90fa0',
     'phui-icon-set-selector-css' => '7aa5f3ec',

src/__phutil_library_map__.php

···
     'PhabricatorPolicyRule' => 'applications/policy/rule/PhabricatorPolicyRule.php',
     'PhabricatorPolicyRulesView' => 'applications/policy/view/PhabricatorPolicyRulesView.php',
     'PhabricatorPolicySearchEngineExtension' => 'applications/policy/engineextension/PhabricatorPolicySearchEngineExtension.php',
-    'PhabricatorPolicyStrengthConstants' => 'applications/policy/constants/PhabricatorPolicyStrengthConstants.php',
     'PhabricatorPolicyTestCase' => 'applications/policy/__tests__/PhabricatorPolicyTestCase.php',
     'PhabricatorPolicyTestObject' => 'applications/policy/__tests__/PhabricatorPolicyTestObject.php',
     'PhabricatorPolicyType' => 'applications/policy/constants/PhabricatorPolicyType.php',
···
     'PhabricatorPolicyRule' => 'Phobject',
     'PhabricatorPolicyRulesView' => 'AphrontView',
     'PhabricatorPolicySearchEngineExtension' => 'PhabricatorSearchEngineExtension',
-    'PhabricatorPolicyStrengthConstants' => 'PhabricatorPolicyConstants',
     'PhabricatorPolicyTestCase' => 'PhabricatorTestCase',
     'PhabricatorPolicyTestObject' => array(
       'Phobject',

src/applications/phriction/codex/PhrictionDocumentPolicyCodex.php

···
             ->executeOne();
   }
 
-  public function compareToDefaultPolicy(PhabricatorPolicy $policy) {
-    $root_policy = $this->getDefaultPolicy();
-    $strongest_policy = $this->getStrongestPolicy();
-
-    // Note that we never return 'weaker', because Phriction documents can
-    // never have weaker permissions than their parents. If this object has
-    // been set to weaker permissions anyway, return 'adjusted'.
-    if ($root_policy == $strongest_policy) {
-      $strength = null;
-    } else if ($strongest_policy->isStrongerThan($root_policy)) {
-      $strength = PhabricatorPolicyStrengthConstants::STRONGER;
-    } else {
-      $strength = PhabricatorPolicyStrengthConstants::ADJUSTED;
-    }
-    return $strength;
-  }
-
   private function getStrongestPolicy() {
     $ancestors = $this->getObject()->getAncestors();
     $ancestors[] = $this->getObject();

src/applications/policy/codex/PhabricatorPolicyCodex.php

···
       $this->capability);
   }
 
-  public function compareToDefaultPolicy(PhabricatorPolicy $policy) {
-    return null;
-  }
-
   final protected function newRule() {
     return new PhabricatorPolicyCodexRuleDescription();
   }

src/applications/policy/constants/PhabricatorPolicyStrengthConstants.php

···
-<?php
-
-final class PhabricatorPolicyStrengthConstants
-  extends PhabricatorPolicyConstants {
-
-  const WEAKER   = 'weaker';
-  const STRONGER = 'stronger';
-  const ADJUSTED = 'adjusted';
-}

src/applications/policy/controller/PhabricatorPolicyExplainController.php

···
     return $space_section;
   }
 
-  private function getStrengthInformation(
-    PhabricatorPolicyInterface $object,
-    PhabricatorPolicy $policy,
-    $capability) {
-    $viewer = $this->getViewer();
-
-
-    $strength = null;
-    if ($object instanceof PhabricatorPolicyCodexInterface) {
-      $codex = id(PhabricatorPolicyCodex::newFromObject($object, $viewer))
-        ->setCapability($capability);
-      $strength = $codex->compareToDefaultPolicy($policy);
-      $default_policy = $codex->getDefaultPolicy();
-    } else {
-      $default_policy = PhabricatorPolicyQuery::getDefaultPolicyForObject(
-        $viewer,
-        $object,
-        $capability);
-
-      if ($default_policy) {
-        if ($default_policy->getPHID() == $policy->getPHID()) {
-          return;
-        }
-
-        if ($default_policy->getPHID() != $policy->getPHID()) {
-          if ($default_policy->isStrongerThan($policy)) {
-            $strength = PhabricatorPolicyStrengthConstants::WEAKER;
-          } else if ($policy->isStrongerThan($default_policy)) {
-            $strength = PhabricatorPolicyStrengthConstants::STRONGER;
-          } else {
-            $strength = PhabricatorPolicyStrengthConstants::ADJUSTED;
-          }
-        }
-      }
-    }
-
-    if (!$strength) {
-      return;
-    }
-
-    if ($strength == PhabricatorPolicyStrengthConstants::WEAKER) {
-      $info = pht(
-        'This object has a less restrictive policy ("%s") than the default '.
-        'policy for similar objects (which is "%s").',
-        $policy->getShortName(),
-        $default_policy->getShortName());
-    } else if ($strength == PhabricatorPolicyStrengthConstants::STRONGER) {
-      $info = pht(
-        'This object has a more restrictive policy ("%s") than the default '.
-        'policy for similar objects (which is "%s").',
-        $policy->getShortName(),
-        $default_policy->getShortName());
-    } else {
-      $info = pht(
-        'This object has a different policy ("%s") than the default policy '.
-        'for similar objects (which is "%s").',
-        $policy->getShortName(),
-        $default_policy->getShortName());
-    }
-
-    return $info;
-  }
-
   private function getCapabilityName($capability) {
     $capability_name = $capability;
     $capobj = PhabricatorPolicyCapability::getCapabilityByKey($capability);
···
         ->setViewer($viewer)
         ->setPolicy($policy);
       $object_section->appendRulesView($rules_view);
-    }
-
-    $strength = $this->getStrengthInformation($object, $policy, $capability);
-    if ($strength) {
-      $object_section->appendHint($strength);
     }
 
     return $object_section;

src/view/phui/PHUIHeaderView.php

···
     $container_classes[] = 'policy-header-callout';
     $phid = $object->getPHID();
 
-    // If we're going to show the object policy, try to determine if the object
-    // policy differs from the default policy. If it does, we'll call it out
-    // as changed.
-    if (!$use_space_policy) {
-      $strength = null;
-      if ($object instanceof PhabricatorPolicyCodexInterface) {
-        $codex = id(PhabricatorPolicyCodex::newFromObject($object, $viewer))
-          ->setCapability($view_capability);
-        $strength = $codex->compareToDefaultPolicy($policy);
-      } else {
-        $default_policy = PhabricatorPolicyQuery::getDefaultPolicyForObject(
-          $viewer,
-          $object,
-          $view_capability);
-
-        if ($default_policy) {
-          if ($default_policy->getPHID() != $policy->getPHID()) {
-            if ($default_policy->isStrongerThan($policy)) {
-              $strength = PhabricatorPolicyStrengthConstants::WEAKER;
-            } else if ($policy->isStrongerThan($default_policy)) {
-              $strength = PhabricatorPolicyStrengthConstants::STRONGER;
-            } else {
-              $strength = PhabricatorPolicyStrengthConstants::ADJUSTED;
-            }
-          }
-        }
-      }
-
-      if ($strength) {
-        if ($strength == PhabricatorPolicyStrengthConstants::WEAKER) {
-          // The policy has strictly been weakened. For example, the
-          // default might be "All Users" and the current policy is "Public".
-          $container_classes[] = 'policy-adjusted-weaker';
-        } else if ($strength == PhabricatorPolicyStrengthConstants::STRONGER) {
-          // The policy has strictly been strengthened, and is now more
-          // restrictive than the default. For example, "All Users" has
-          // been replaced with "No One".
-          $container_classes[] = 'policy-adjusted-stronger';
-        } else {
-          // The policy has been adjusted but not strictly strengthened
-          // or weakened. For example, "Members of X" has been replaced with
-          // "Members of Y".
-          $container_classes[] = 'policy-adjusted-different';
-        }
-      }
-    }
-
     $policy_name = array($policy->getShortName());
     $policy_icon = $policy->getIcon().' bluegrey';
 

webroot/rsrc/css/phui/phui-header-view.css

···
   -webkit-font-smoothing: auto;
 }
 
-.policy-header-callout.policy-adjusted-weaker {
-  background: {$sh-greenbackground};
-}
-
-.policy-header-callout.policy-adjusted-weaker .policy-link,
-.policy-header-callout.policy-adjusted-weaker .phui-icon-view {
-  color: {$sh-greentext};
-}
-
-.policy-header-callout.policy-adjusted-stronger {
-  background: {$sh-redbackground};
-}
-
-.policy-header-callout.policy-adjusted-stronger .policy-link,
-.policy-header-callout.policy-adjusted-stronger .phui-icon-view {
-  color: {$sh-redtext};
-}
-
-.policy-header-callout.policy-adjusted-different {
-  background: {$sh-orangebackground};
-}
-
-.policy-header-callout.policy-adjusted-different .policy-link,
-.policy-header-callout.policy-adjusted-different .phui-icon-view {
-  color: {$sh-orangetext};
-}
-
 .policy-header-callout.policy-adjusted-special {
   background: {$sh-indigobackground};
 }