Gamepad API support for chrome on android

content/renderer/gamepad_shared_memory_reader.cc

Index: content/renderer/gamepad_shared_memory_reader.cc
diff --git a/content/renderer/gamepad_shared_memory_reader.cc b/content/renderer/gamepad_shared_memory_reader.cc
index 23edeb3a22368251b5614e58c0ed136c505024e9..7609238ec86f3cb95801ac33a03e04064e437626 100644
--- a/content/renderer/gamepad_shared_memory_reader.cc
+++ b/content/renderer/gamepad_shared_memory_reader.cc
@@ -1,4 +1,5 @@
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -35,6 +36,16 @@ GamepadSharedMemoryReader::GamepadSharedMemoryReader()
       static_cast<GamepadHardwareBuffer*>(memory);
 }
 
+#if defined(OS_ANDROID)
+void GamepadSharedMemoryReader::ResumeGamepads() {
+  RenderThread::Get()->Send(new GamepadHostMsg_ResumePolling());
+}
+
+void GamepadSharedMemoryReader::PauseGamepads() {
+  RenderThread::Get()->Send(new GamepadHostMsg_PausePolling());
+}
+#endif
+
 void GamepadSharedMemoryReader::SampleGamepads(blink::WebGamepads& gamepads) {
   // ==========
   //   DANGER
@@ -55,6 +66,10 @@ void GamepadSharedMemoryReader::SampleGamepads(blink::WebGamepads& gamepads) {
   const int kMaximumContentionCount = 10;
   int contention_count = -1;
   base::subtle::Atomic32 version;
+#if defined(OS_ANDROID)
+  //Update the timestamp for Gamepad Data access by the consumer
+  RenderThread::Get()->Send(new GamepadHostMsg_UpdateTimestamp());
+#endif
   do {
     version = gamepad_hardware_buffer_->sequence.ReadBegin();
     memcpy(&read_into, &gamepad_hardware_buffer_->buffer, sizeof(read_into));