Port the Extension Install Bubble changes to Mac

chrome/browser/extensions/api/commands/command_service.cc

 // Copyright (c) 2012 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/extensions/api/commands/command_service.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 275 matching lines @@
             std::pair<const std::string, const std::string> >(&details));
   }
 }
 
 bool CommandService::GetExtensionActionCommand(
     const std::string& extension_id,
     QueryType query_type,
     extensions::Command* command,
     bool* active,
     ExtensionActionType action_type) {
-  const ExtensionSet* extensions =
-      ExtensionSystem::Get(profile_)->extension_service()->extensions();
+  ExtensionService* service =
+      ExtensionSystem::Get(profile_)->extension_service();
+  if (!service)
+    return false;  // Can happen in tests.
+  const ExtensionSet* extensions = service->extensions();
   const Extension* extension = extensions->GetByID(extension_id);
   CHECK(extension);
 
   if (active)
     *active = false;
 
   const extensions::Command* requested_command = NULL;
   switch (action_type) {
     case BROWSER_ACTION:
       requested_command = extension->browser_action_command();
@@ skipping 19 matching lines @@
     return false;
 
   *command = *requested_command;
   if (shortcut_assigned.key_code() != ui::VKEY_UNKNOWN)
     command->set_accelerator(shortcut_assigned);
 
   return true;
 }
 
 }  // namespace extensions