Gamepad: don't notify about connected pads twice

content/browser/gamepad/gamepad_test_helpers.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_GAMEPAD_GAMEPAD_TEST_HELPERS_H_
 #define CONTENT_BROWSER_GAMEPAD_GAMEPAD_TEST_HELPERS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/synchronization/lock.h"
@@ skipping 15 matching lines @@
   virtual ~MockGamepadDataFetcher();
 
   // GamepadDataFetcher.
   virtual void GetGamepadData(blink::WebGamepads* pads,
                               bool devices_changed_hint) OVERRIDE;
 
   // Blocks the current thread until the GamepadProvider reads from this
   // fetcher on the background thread.
   void WaitForDataRead();
 
+  // Blocks the current thread until the GamepadProvider reads from this
+  // fetcher on the background thread and issued all callbacks related to the
+  // read on the client's thread.
+  void WaitForDataReadAndCallbacksIssued();
+
   // Updates the test data.
   void SetTestData(const blink::WebGamepads& new_data);
 
  private:
   base::Lock lock_;
   blink::WebGamepads test_data_;
   base::WaitableEvent read_data_;
 
   DISALLOW_COPY_AND_ASSIGN(MockGamepadDataFetcher);
 };
@@ skipping 29 matching lines @@
 
   // Pointer owned by the provider (which is owned by the gamepad service).
   MockGamepadDataFetcher* data_fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(GamepadServiceTestConstructor);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GAMEPAD_GAMEPAD_TEST_HELPERS_H_