Move extension_test_message_listener to extensions.

chrome/browser/extensions/api/extension_action/browser_action_browsertest.cc

 // Copyright 2014 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 "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/extensions/extension_action_manager.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
-#include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "content/public/test/test_utils.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/state_store.h"
 #include "extensions/common/extension.h"
+#include "extensions/test/extension_test_message_listener.h"
 #include "third_party/skia/include/core/SkColor.h"
 
 namespace extensions {
 
 namespace {
 
 // A key into the StateStore; we don't use any results, but need to know when
 // it's initialized.
 const char kBrowserActionStorageKey[] = "browser_action";
 // The name of the extension we add.
@@ skipping 82 matching lines @@
     LOG(WARNING) << "State store already initialized; test guaranteed to pass.";
 
   // Wait for the StateStore to load, and fetch the defaults.
   WaitForStateStore(profile(), extension->id());
 
   // Ensure the BrowserAction's badge background is still blue.
   EXPECT_EQ(SK_ColorBLUE, extension_action->GetBadgeBackgroundColor(0));
 }
 
 }  // namespace extensions