Revert "Refactor code listening to platform events in content/renderer/."

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 6c449b0ef8a7dd6ddc9001b877d116caf3464c5b..3975856b9b0a14cfd62120fd9ddbb8ec296a849c 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -72,6 +72,7 @@
 #include "content/renderer/dom_storage/dom_storage_dispatcher.h"
 #include "content/renderer/dom_storage/webstoragearea_impl.h"
 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
+#include "content/renderer/gamepad_shared_memory_reader.h"
 #include "content/renderer/gpu/compositor_output_surface.h"
 #include "content/renderer/gpu/gpu_benchmarking_extension.h"
 #include "content/renderer/input/input_event_filter.h"
@@ -897,6 +898,10 @@ void RenderThreadImpl::EnsureWebKitInitialized() {
       CompositorOutputSurface::CreateFilter(output_surface_loop.get());
   AddFilter(compositor_output_surface_filter_.get());
 
+  gamepad_shared_memory_reader_.reset(
+      new GamepadSharedMemoryReader(webkit_platform_support_.get()));
+  AddObserver(gamepad_shared_memory_reader_.get());
+
   RenderThreadImpl::RegisterSchemes();
 
   EnableBlinkPlatformLogChannels(
@@ -1612,7 +1617,11 @@ void RenderThreadImpl::SetFlingCurveParameters(
 }
 
 void RenderThreadImpl::SampleGamepads(blink::WebGamepads* data) {
-  webkit_platform_support_->sampleGamepads(*data);
+  gamepad_shared_memory_reader_->SampleGamepads(*data);
+}
+
+void RenderThreadImpl::SetGamepadListener(blink::WebGamepadListener* listener) {
+  gamepad_shared_memory_reader_->SetGamepadListener(listener);
 }
 
 void RenderThreadImpl::WidgetCreated() {