Add PlatformLocalFrame class.

third_party/WebKit/Source/web/InspectorOverlayAgent.cpp

Index: third_party/WebKit/Source/web/InspectorOverlayAgent.cpp
diff --git a/third_party/WebKit/Source/web/InspectorOverlayAgent.cpp b/third_party/WebKit/Source/web/InspectorOverlayAgent.cpp
index ab47f9c9eb195df5a3096dbdf3450768c977f32c..22b950b8ad767ce2bf781e0fce926ac8a1528827 100644
--- a/third_party/WebKit/Source/web/InspectorOverlayAgent.cpp
+++ b/third_party/WebKit/Source/web/InspectorOverlayAgent.cpp
@@ -196,7 +196,7 @@ class InspectorOverlayAgent::InspectorOverlayChromeClient final
 
   void InvalidateRect(const IntRect&) override { overlay_->Invalidate(); }
 
-  void ScheduleAnimation(LocalFrame* frame) override {
+  void ScheduleAnimation(const PlatformLocalFrame* frame) override {
     if (overlay_->in_layout_)
       return;
 
@@ -883,7 +883,7 @@ void InspectorOverlayAgent::Reset(const IntSize& viewport_size,
 
   IntRect viewport_in_screen =
       frame_impl_->GetFrame()->GetPage()->GetChromeClient().ViewportToScreen(
-          IntRect(IntPoint(), viewport_size), frame_impl_->GetFrame()->View());
+          IntRect(IntPoint(), viewport_size), frame_impl_->GetFrame());
   reset_data->setObject("viewportSize",
                         BuildObjectForSize(viewport_in_screen.Size()));