Remove a bunch of NPAPI quirks and related support code

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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.
 
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 520 matching lines @@
 
 bool RenderWidgetHostViewChildFrame::HasAcceleratedSurface(
       const gfx::Size& desired_size) {
   return false;
 }
 
 #if defined(OS_WIN)
 void RenderWidgetHostViewChildFrame::SetParentNativeViewAccessible(
     gfx::NativeViewAccessible accessible_parent) {
 }
-
-gfx::NativeViewId RenderWidgetHostViewChildFrame::GetParentForWindowlessPlugin()
-    const {
-  return NULL;
-}
 #endif  // defined(OS_WIN)
 
 // cc::SurfaceFactoryClient implementation.
 void RenderWidgetHostViewChildFrame::ReturnResources(
     const cc::ReturnedResourceArray& resources) {
   if (resources.empty())
     return;
 
   if (!ack_pending_count_ && host_) {
     cc::CompositorFrameAck ack;
@@ skipping 24 matching lines @@
   if (surface_factory_ && !surface_id_.is_null())
     surface_factory_->Destroy(surface_id_);
   surface_id_ = cc::SurfaceId();
 }
 
 cc::SurfaceId RenderWidgetHostViewChildFrame::SurfaceIdForTesting() const {
   return surface_id_;
 };
 
 }  // namespace content