Remove some code inside USE_AURA and OS_WIN ifdefs.

content/browser/frame_host/render_widget_host_view_child_frame.cc

Index: content/browser/frame_host/render_widget_host_view_child_frame.cc
===================================================================
--- content/browser/frame_host/render_widget_host_view_child_frame.cc	(revision 244508)
+++ content/browser/frame_host/render_widget_host_view_child_frame.cc	(working copy)
@@ -300,11 +300,6 @@
 }
 #endif  // defined(TOOLKIT_GTK)
 
-#if defined(OS_WIN) && !defined(USE_AURA)
-void RenderWidgetHostViewChildFrame::WillWmDestroy() {
-}
-#endif  // defined(OS_WIN) && !defined(USE_AURA)
-
 BackingStore* RenderWidgetHostViewChildFrame::AllocBackingStore(
     const gfx::Size& size) {
   NOTREACHED();
@@ -342,11 +337,6 @@
   return false;
 }
 
-#if defined(OS_WIN) && !defined(USE_AURA)
-void RenderWidgetHostViewChildFrame::SetClickthroughRegion(SkRegion* region) {
-}
-#endif // defined(OS_WIN) && !defined(USE_AURA)
-
 gfx::GLSurfaceHandle RenderWidgetHostViewChildFrame::GetCompositingSurface() {
   return gfx::GLSurfaceHandle(gfx::kNullPluginWindow, gfx::TEXTURE_TRANSPORT);
 }
@@ -359,7 +349,7 @@
     bool is_pinned_to_left, bool is_pinned_to_right) {
 }
 
-#if defined(OS_WIN) && defined(USE_AURA)
+#if defined(OS_WIN)
 void RenderWidgetHostViewChildFrame::SetParentNativeViewAccessible(
     gfx::NativeViewAccessible accessible_parent) {
 }