Make ToolbarActionsModel ignore calls to AddComponentAction() before initialization

chrome/browser/extensions/component_migration_helper_unittest.cc

 // Copyright 2016 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 <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/component_migration_helper.h"
@@ skipping 15 matching lines @@
 namespace {
 
 const char kTestActionId[] = "toolbar-action";
 
 class MockComponentActionDelegate
     : public ComponentMigrationHelper::ComponentActionDelegate {
  public:
   MOCK_METHOD1(AddComponentAction, void(const std::string&));
   MOCK_METHOD1(RemoveComponentAction, void(const std::string&));
   MOCK_CONST_METHOD1(HasComponentAction, bool(const std::string&));
+  MOCK_CONST_METHOD0(ActionsInitialized, bool());
 };
 
 class MockComponentMigrationHelper : public ComponentMigrationHelper {
  public:
   MockComponentMigrationHelper(Profile* profile,
                                ComponentActionDelegate* delegate)
       : ComponentMigrationHelper(profile, delegate) {}
 
   ~MockComponentMigrationHelper() override{};
 
@@ skipping 157 matching lines @@
 
   EXPECT_CALL(mock_delegate_, HasComponentAction(kTestActionId))
       .WillOnce(Return(true));
   EXPECT_CALL(mock_delegate_, RemoveComponentAction(kTestActionId));
 
   mock_helper_->OnActionRemoved(kTestActionId);
   EXPECT_FALSE(IsTestComponentActionEnabled());
 }
 
 }  // namespace extensions