Extract GCMClient data types into separate gcm_types.h

chrome/browser/services/gcm/gcm_client_mock.cc

Index: chrome/browser/services/gcm/gcm_client_mock.cc
diff --git a/chrome/browser/services/gcm/gcm_client_mock.cc b/chrome/browser/services/gcm/gcm_client_mock.cc
index b894efaa70c8996c3ad77e0c6aa64bae599382ee..4653b56a3d93d10dbce1665cbdfeb332add39a11 100644
--- a/chrome/browser/services/gcm/gcm_client_mock.cc
+++ b/chrome/browser/services/gcm/gcm_client_mock.cc
@@ -173,7 +173,7 @@ void GCMClientMock::RegisterFinished(const std::string& app_id,
 }
 
 void GCMClientMock::UnregisterFinished(const std::string& app_id) {
-  delegate_->OnUnregisterFinished(app_id, GCMClient::SUCCESS);
+  delegate_->OnUnregisterFinished(app_id, RESULT_SUCCESS);
 }
 
 void GCMClientMock::SendFinished(const std::string& app_id,
@@ -209,7 +209,7 @@ void GCMClientMock::MessagesDeleted(const std::string& app_id) {
 
 void GCMClientMock::MessageSendError(
     const std::string& app_id,
-    const GCMClient::SendErrorDetails& send_error_details) {
+    const SendErrorDetails& send_error_details) {
   if (delegate_)
     delegate_->OnMessageSendError(app_id, send_error_details);
 }