    // This only needs to be overridden by RenderWidgetHostViewBase subclasses
    // that handle content embedded within other RenderWidgetHostViews.
    gfx::Point TransformPointToRootCoordSpace(const gfx::Point& point) override;
-@@ -240,16 +247,21 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
+@@ -248,16 +255,21 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
        cc::SurfaceHittestDelegate* delegate,
        const gfx::Point& point,
        gfx::Point* transformed_point);

     const gfx::Point& point) {
   return point;
diff --git a/content/browser/renderer_host/render_widget_host_view_base.h b/content/browser/renderer_host/render_widget_host_view_base.h
index 88e7a04..095a873 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.h
+++ b/content/browser/renderer_host/render_widget_host_view_base.h
@@ -22,9 +22,11 @@
 #include "cc/output/compositor_frame.h"
 #include "cc/surfaces/surface_id.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
+#include "content/browser/web_contents/web_contents_view.h"
 #include "content/common/content_export.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/public/browser/readback_types.h"
+#include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/common/screen_info.h"
 #include "ipc/ipc_listener.h"
@@ -67,9 +69,11 @@ class BrowserAccessibilityDelegate;
 class BrowserAccessibilityManager;
 class RenderWidgetHostImpl;
 class RenderWidgetHostViewBaseObserver;
+class RenderWidgetHostViewGuest;
 class SyntheticGesture;
 class SyntheticGestureTarget;
 class TextInputManager;
+class WebContentsView;
 class WebCursor;
 struct NativeWebKeyboardEvent;
 struct TextInputState;
@@ -108,6 +112,9 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
   void FocusedNodeTouched(const gfx::Point& location_dips_screen,
                           bool editable) override;
 

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 029e72d..d079ba9 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -430,6 +430,35 @@ cc::FrameSinkId RenderWidgetHostViewBase::FrameSinkIdAtPoint(
   return cc::FrameSinkId();
 }
 
