refactor to Introduce AUDIO_CAPTURE and VIDEO_CAPTURE permissions.

chrome/browser/permissions/permission_manager.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/permissions/permission_manager.h"
 
 #include "base/callback.h"
 #include "chrome/browser/permissions/permission_context.h"
 #include "chrome/browser/permissions/permission_context_base.h"
 #include "chrome/browser/permissions/permission_request_id.h"
@@ skipping 46 matching lines @@
       return CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER;
 #else
       NOTIMPLEMENTED();
       break;
 #endif
     case PermissionType::DURABLE_STORAGE:
       return CONTENT_SETTINGS_TYPE_DURABLE_STORAGE;
     case PermissionType::MIDI:
       // This will hit the NOTREACHED below.
       break;
+    case PermissionType::AUDIO_CAPTURE:
+      return CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC;
+    case PermissionType::VIDEO_CAPTURE:
+      return CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA;
     case PermissionType::NUM:
       // This will hit the NOTREACHED below.
       break;
   }
 
   NOTREACHED() << "Unknown content setting for permission "
                << static_cast<int>(permission);
   return CONTENT_SETTINGS_TYPE_DEFAULT;
 }
 
@@ skipping 135 matching lines @@
     PermissionType permission,
     const GURL& requesting_origin,
     const GURL& embedding_origin) {
   if (IsConstantPermission(permission))
     return GetPermissionStatusForConstantPermission(permission);
 
   PermissionContextBase* context = PermissionContext::Get(profile_, permission);
   if (!context)
     return content::PERMISSION_STATUS_DENIED;
 
-  return ContentSettingToPermissionStatus(
-      context->GetPermissionStatus(requesting_origin.GetOrigin(),
-                                   embedding_origin.GetOrigin()));
+  return ContentSettingToPermissionStatus(context->GetPermissionStatus(
+      requesting_origin.GetOrigin(), embedding_origin.GetOrigin()));
 }
 
 void PermissionManager::RegisterPermissionUsage(PermissionType permission,
                                                 const GURL& requesting_origin,
                                                 const GURL& embedding_origin) {
   // This is required because constant permissions don't have a
   // ContentSettingsType.
   if (IsConstantPermission(permission))
     return;
 
@@ skipping 80 matching lines @@
     // Add the callback to |callbacks| which will be run after the loop to
     // prevent re-entrance issues.
     callbacks.push_back(
         base::Bind(subscription->callback,
                    ContentSettingToPermissionStatus(new_value)));
   }
 
   for (const auto& callback : callbacks)
     callback.Run();
 }