Remove dependency on content::BrowserThread from GCMDriver

chrome/browser/services/gcm/fake_gcm_client_factory.h

 // 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.
 
 #ifndef CHROME_BROWSER_SERVICES_GCM_FAKE_GCM_CLIENT_FACTORY_H_
 #define CHROME_BROWSER_SERVICES_GCM_FAKE_GCM_CLIENT_FACTORY_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/services/gcm/fake_gcm_client.h"
 #include "components/gcm_driver/gcm_client_factory.h"
 
+namespace base {
+class SequencedTaskRunner;
+}
+
 namespace gcm {
 
 class GCMClient;
 
 class FakeGCMClientFactory : public GCMClientFactory {
  public:
-  explicit FakeGCMClientFactory(FakeGCMClient::StartMode gcm_client_start_mode);
+  FakeGCMClientFactory(
+      FakeGCMClient::StartMode gcm_client_start_mode,
+      const scoped_refptr<base::SequencedTaskRunner>& ui_thread,
+      const scoped_refptr<base::SequencedTaskRunner>& io_thread);
   virtual ~FakeGCMClientFactory();
 
   // GCMClientFactory:
   virtual scoped_ptr<GCMClient> BuildInstance() OVERRIDE;
 
  private:
   FakeGCMClient::StartMode gcm_client_start_mode_;
+  scoped_refptr<base::SequencedTaskRunner> ui_thread_;
+  scoped_refptr<base::SequencedTaskRunner> io_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeGCMClientFactory);
 };
 
 }  // namespace gcm
 
 #endif  // CHROME_BROWSER_SERVICES_GCM_FAKE_GCM_CLIENT_FACTORY_H_