Revert 116724 - Add gamepad data fetcher for Linux

content/browser/gamepad/gamepad_provider.cc

Index: content/browser/gamepad/gamepad_provider.cc
===================================================================
--- content/browser/gamepad/gamepad_provider.cc	(revision 116725)
+++ content/browser/gamepad/gamepad_provider.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -12,14 +12,41 @@
 #include "base/task.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/browser/gamepad/gamepad_provider.h"
 #include "content/browser/gamepad/data_fetcher.h"
-#include "content/browser/gamepad/gamepad_provider.h"
-#include "content/browser/gamepad/platform_data_fetcher.h"
 #include "content/common/gamepad_messages.h"
-#include "content/public/browser/browser_thread.h"
 
+#if defined(OS_WIN)
+#include "content/browser/gamepad/data_fetcher_win.h"
+#elif defined(OS_MACOSX)
+#include "content/browser/gamepad/data_fetcher_mac.h"
+#endif
+
 namespace content {
 
+// Define the default data fetcher that GamepadProvider will use if none is
+// supplied. (GamepadPlatformDataFetcher).
+#if defined(OS_WIN)
+
+typedef GamepadDataFetcherWindows GamepadPlatformDataFetcher;
+
+#elif defined(OS_MACOSX)
+
+typedef GamepadDataFetcherMac GamepadPlatformDataFetcher;
+
+#else
+
+class GamepadEmptyDataFetcher : public GamepadDataFetcher {
+ public:
+  void GetGamepadData(WebKit::WebGamepads* pads, bool) {
+    pads->length = 0;
+  }
+};
+typedef GamepadEmptyDataFetcher GamepadPlatformDataFetcher;
+
+#endif
+
 GamepadProvider::GamepadProvider(GamepadDataFetcher* fetcher)
     : is_paused_(false),
       devices_changed_(true),
@@ -35,8 +62,7 @@
   memset(hwbuf, 0, sizeof(GamepadHardwareBuffer));
 
   polling_thread_.reset(new base::Thread("Gamepad polling thread"));
-  polling_thread_->StartWithOptions(
-      base::Thread::Options(MessageLoop::TYPE_IO, 0));
+  polling_thread_->Start();
 
   MessageLoop* polling_loop = polling_thread_->message_loop();
   polling_loop->PostTask(