Move IdentityProvider usage from GCMDriverDesktop to GCMProfileService

components/gcm_driver/gcm_driver_android.h

Index: components/gcm_driver/gcm_driver_android.h
diff --git a/components/gcm_driver/gcm_driver_android.h b/components/gcm_driver/gcm_driver_android.h
index 729ce3f435a16a7a93ddae03ed096544e0ece118..1116893d3642d784353d0bf0ce1195fbda1df7be 100644
--- a/components/gcm_driver/gcm_driver_android.h
+++ b/components/gcm_driver/gcm_driver_android.h
@@ -44,6 +44,8 @@ class GCMDriverAndroid : public GCMDriver {
   static bool RegisterBindings(JNIEnv* env);
 
   // GCMDriver implementation:
+  virtual void SignIn() OVERRIDE;
+  virtual void Purge() OVERRIDE;
   virtual void Enable() OVERRIDE;
   virtual void Disable() OVERRIDE;
   virtual GCMClient* GetGCMClientForTesting() const OVERRIDE;
@@ -53,7 +55,6 @@ class GCMDriverAndroid : public GCMDriver {
                                 bool clear_logs) OVERRIDE;
   virtual void SetGCMRecording(const GetGCMStatisticsCallback& callback,
                                bool recording) OVERRIDE;
-  virtual std::string SignedInUserName() const OVERRIDE;
 
  protected:
   // GCMDriver implementation: