Decouple GamepadSharedMemory into Blink.

content/renderer/renderer_blink_platform_impl.cc

Index: content/renderer/renderer_blink_platform_impl.cc
diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
index 8295ac864c70d110b334e1333f509a42e3db4b39..fa66d2c61758911ffe215b71e9fd04fa28cc7a41 100644
--- a/content/renderer/renderer_blink_platform_impl.cc
+++ b/content/renderer/renderer_blink_platform_impl.cc
@@ -54,7 +54,6 @@
 #include "content/renderer/dom_storage/local_storage_cached_areas.h"
 #include "content/renderer/dom_storage/local_storage_namespace.h"
 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
-#include "content/renderer/gamepad_shared_memory_reader.h"
 #include "content/renderer/media/audio_decoder.h"
 #include "content/renderer/media/audio_device_factory.h"
 #include "content/renderer/media/canvas_capture_handler.h"
@@ -91,7 +90,6 @@
 #include "third_party/WebKit/public/platform/WebBlobRegistry.h"
 #include "third_party/WebKit/public/platform/WebDeviceLightListener.h"
 #include "third_party/WebKit/public/platform/WebFileInfo.h"
-#include "third_party/WebKit/public/platform/WebGamepads.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamCenter.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamCenterClient.h"
 #include "third_party/WebKit/public/platform/WebPluginListBuilder.h"
@@ -148,8 +146,6 @@ using blink::WebCanvasCaptureHandler;
 using blink::WebDatabaseObserver;
 using blink::WebFileInfo;
 using blink::WebFileSystem;
-using blink::WebGamepad;
-using blink::WebGamepads;
 using blink::WebIDBFactory;
 using blink::WebImageCaptureFrameGrabber;
 using blink::WebMIDIAccessor;
@@ -810,16 +806,6 @@ WebBlobRegistry* RendererBlinkPlatformImpl::getBlobRegistry() {
 
 //------------------------------------------------------------------------------
 
-void RendererBlinkPlatformImpl::sampleGamepads(WebGamepads& gamepads) {
-  PlatformEventObserverBase* observer =
-      platform_event_observers_.Lookup(blink::WebPlatformEventTypeGamepad);
-  if (!observer)
-    return;
-  static_cast<RendererGamepadProvider*>(observer)->SampleGamepads(gamepads);
-}
-
-//------------------------------------------------------------------------------
-
 WebMediaRecorderHandler*
 RendererBlinkPlatformImpl::createMediaRecorderHandler() {
 #if BUILDFLAG(ENABLE_WEBRTC)
@@ -1180,8 +1166,6 @@ RendererBlinkPlatformImpl::CreatePlatformEventObserverFromType(
       return base::MakeUnique<DeviceOrientationAbsoluteEventPump>(thread);
     case blink::WebPlatformEventTypeDeviceLight:
       return base::MakeUnique<DeviceLightEventPump>(thread);
-    case blink::WebPlatformEventTypeGamepad:
-      return base::MakeUnique<GamepadSharedMemoryReader>(thread);
     case blink::WebPlatformEventTypeScreenOrientation:
       return base::MakeUnique<ScreenOrientationObserver>();
     default: