[GCM] Fix crash during connection races

google_apis/gcm/engine/fake_connection_handler.h

Index: google_apis/gcm/engine/fake_connection_handler.h
diff --git a/google_apis/gcm/engine/fake_connection_handler.h b/google_apis/gcm/engine/fake_connection_handler.h
index 4e43d12dec11df94d727ed36af15fedf88561e6e..f1094780d08ddb1cf60872bba36559cd1a208398 100644
--- a/google_apis/gcm/engine/fake_connection_handler.h
+++ b/google_apis/gcm/engine/fake_connection_handler.h
@@ -51,6 +51,13 @@ class FakeConnectionHandler : public ConnectionHandler {
     fail_send_ = fail_send;
   }
 
+  // Whether a socket-level error was encountered or not.
+  void set_had_error(bool had_error) {
+    had_error_ = had_error;
+  }
+
+  bool initialized() const { return initialized_; }
+
  private:
   ConnectionHandler::ProtoReceivedCallback read_callback_;
   ConnectionHandler::ProtoSentCallback write_callback_;
@@ -66,6 +73,9 @@ class FakeConnectionHandler : public ConnectionHandler {
   // Whether a successful login has completed.
   bool initialized_;
 
+  // Whether an error was encountered after a successful login.
+  bool had_error_;
+
   DISALLOW_COPY_AND_ASSIGN(FakeConnectionHandler);
 };