Make GCMProfileService own GCMDriver, instead of deriving from it

chrome/browser/extensions/extension_gcm_app_handler_unittest.cc

Index: chrome/browser/extensions/extension_gcm_app_handler_unittest.cc
diff --git a/chrome/browser/extensions/extension_gcm_app_handler_unittest.cc b/chrome/browser/extensions/extension_gcm_app_handler_unittest.cc
index 8e2b980ed74911604674af27c3f3b80fc7cf28e8..fb65d2a0ad3f0ad872a82b7ac4d25f3d6f064595 100644
--- a/chrome/browser/extensions/extension_gcm_app_handler_unittest.cc
+++ b/chrome/browser/extensions/extension_gcm_app_handler_unittest.cc
@@ -23,6 +23,7 @@
 #include "chrome/browser/services/gcm/fake_gcm_client.h"
 #include "chrome/browser/services/gcm/fake_gcm_client_factory.h"
 #include "chrome/browser/services/gcm/fake_signin_manager.h"
+#include "chrome/browser/services/gcm/gcm_driver.h"
 #include "chrome/browser/services/gcm/gcm_profile_service.h"
 #include "chrome/browser/services/gcm/gcm_profile_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
@@ -288,7 +289,7 @@ class ExtensionGCMAppHandlerTest : public testing::Test {
 
   void Register(const std::string& app_id,
                 const std::vector<std::string>& sender_ids) {
-    GetGCMProfileService()->Register(
+    GetGCMDriver()->Register(
         app_id,
         sender_ids,
         base::Bind(&ExtensionGCMAppHandlerTest::RegisterCompleted,
@@ -301,12 +302,12 @@ class ExtensionGCMAppHandlerTest : public testing::Test {
     waiter_.SignalCompleted();
   }
 
-  gcm::GCMProfileService* GetGCMProfileService() const {
-    return gcm::GCMProfileServiceFactory::GetForProfile(profile());
+  gcm::GCMDriver* GetGCMDriver() const {
+    return gcm::GCMProfileServiceFactory::GetForProfile(profile())->driver();
   }
 
   bool HasAppHandlers(const std::string& app_id) const {
-    return GetGCMProfileService()->app_handlers().count(app_id);
+    return GetGCMDriver()->app_handlers().count(app_id);
   }
 
   Profile* profile() const { return profile_.get(); }