[Experimental, WIP] Demo version of extracting WebView selection data from CompositorFrame.

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index 8db91f36331d5d0e5f8ad4bf3d40a08c6a2226b1..8cd565dcca930b4cf9c3e5fb37c40ba7936e886e 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -376,6 +376,7 @@ RenderWidgetHostViewBase::RenderWidgetHostViewBase()
       current_display_rotation_(gfx::Display::ROTATE_0),
       pinch_zoom_enabled_(content::IsPinchToZoomEnabled()),
       renderer_frame_number_(0),
+      focused_node_is_plugin_(false),
       weak_factory_(this) {
 }
 
@@ -520,6 +521,11 @@ gfx::NativeViewAccessible
   return NULL;
 }
 
+void RenderWidgetHostViewBase::FocusedNodeChanged(bool is_editable_node,
+                                                  bool is_plugin_node) {
+  focused_node_is_plugin_ = is_plugin_node;
+}
+
 void RenderWidgetHostViewBase::UpdateScreenInfo(gfx::NativeView view) {
   RenderWidgetHostImpl* impl = NULL;
   if (GetRenderWidgetHost())