Add browser-global GCMDriver

chrome/test/base/testing_browser_process.h

Index: chrome/test/base/testing_browser_process.h
diff --git a/chrome/test/base/testing_browser_process.h b/chrome/test/base/testing_browser_process.h
index 3ecdf479a1b54e2e963391335aa05c3e6d1e64f1..a9696b50cb00f3b7be162c0274eb6556039e4ff3 100644
--- a/chrome/test/base/testing_browser_process.h
+++ b/chrome/test/base/testing_browser_process.h
@@ -34,6 +34,10 @@ namespace extensions {
 class ExtensionsBrowserClient;
 }
 
+namespace gcm {
+class GCMDriver;
+}
+
 namespace policy {
 class BrowserPolicyConnector;
 class PolicyService;
@@ -120,6 +124,8 @@ class TestingBrowserProcess : public BrowserProcess {
 
   virtual NetworkTimeTracker* network_time_tracker() OVERRIDE;
 
+  virtual gcm::GCMDriver* gcm_driver() OVERRIDE;
+
   // Set the local state for tests. Consumer is responsible for cleaning it up
   // afterwards (using ScopedTestingLocalState, for example).
   void SetLocalState(PrefService* local_state);