Make GCMProfileService own GCMDriver, instead of deriving from it

chrome/browser/invalidation/ticl_invalidation_service_unittest.cc

Index: chrome/browser/invalidation/ticl_invalidation_service_unittest.cc
diff --git a/chrome/browser/invalidation/ticl_invalidation_service_unittest.cc b/chrome/browser/invalidation/ticl_invalidation_service_unittest.cc
index bd838c5bda478b727aba36f9155fa904a4ec10d0..a400f4c6f582c7d02d7a4e9165d1e34d5be1c461 100644
--- a/chrome/browser/invalidation/ticl_invalidation_service_unittest.cc
+++ b/chrome/browser/invalidation/ticl_invalidation_service_unittest.cc
@@ -37,16 +37,9 @@ class FakeTiclSettingsProvider : public TiclSettingsProvider {
 
 class FakeGCMDriver : public gcm::GCMDriver {
  public:
-  explicit FakeGCMDriver(OAuth2TokenService* token_service);
+  FakeGCMDriver();
   virtual ~FakeGCMDriver();
 
- protected:
-  // gcm::GCMDriver:
-  virtual bool ShouldStartAutomatically() const OVERRIDE;
-  virtual base::FilePath GetStorePath() const OVERRIDE;
-  virtual scoped_refptr<net::URLRequestContextGetter>
-      GetURLRequestContextGetter() const OVERRIDE;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeGCMDriver);
 };
@@ -61,27 +54,12 @@ bool FakeTiclSettingsProvider::UseGCMChannel() const {
   return false;
 }
 
-FakeGCMDriver::FakeGCMDriver(OAuth2TokenService* token_service)
-    : GCMDriver(scoped_ptr<IdentityProvider>(
-          new FakeIdentityProvider(token_service))) {
+FakeGCMDriver::FakeGCMDriver() {
 }
 
 FakeGCMDriver::~FakeGCMDriver() {
 }
 
-bool FakeGCMDriver::ShouldStartAutomatically() const {
-  return false;
-}
-
-base::FilePath FakeGCMDriver::GetStorePath() const {
-  return base::FilePath();
-}
-
-scoped_refptr<net::URLRequestContextGetter>
-FakeGCMDriver::GetURLRequestContextGetter() const {
-  return NULL;
-}
-
 }  // namespace
 
 class TiclInvalidationServiceTestDelegate {
@@ -98,7 +76,7 @@ class TiclInvalidationServiceTestDelegate {
   }
 
   void CreateUninitializedInvalidationService() {
-    gcm_service_.reset(new FakeGCMDriver(&token_service_));
+    gcm_service_.reset(new FakeGCMDriver());
     invalidation_service_.reset(new TiclInvalidationService(
         scoped_ptr<IdentityProvider>(new FakeIdentityProvider(&token_service_)),
         scoped_ptr<TiclSettingsProvider>(new FakeTiclSettingsProvider),