Make cursors work on win aura.

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
===================================================================
--- content/browser/renderer_host/render_widget_host_view_aura.cc	(revision 157487)
+++ content/browser/renderer_host/render_widget_host_view_aura.cc	(working copy)
@@ -428,7 +428,7 @@
 }
 
 gfx::Rect RenderWidgetHostViewAura::GetViewBounds() const {
-  return window_->GetBoundsInRootWindow();
+  return window_->GetBoundsInScreen();
 }
 
 void RenderWidgetHostViewAura::UpdateCursor(const WebCursor& cursor) {
@@ -1628,7 +1628,11 @@
   if (!root_window)
     return;
 
-  if (root_window->GetEventHandlerForPoint(screen_point) != window_)
+  gfx::Rect screen_rect = GetViewBounds();
+  gfx::Point local_point = screen_point;
+  local_point.Offset(-screen_rect.x(), -screen_rect.y());
+
+  if (root_window->GetEventHandlerForPoint(local_point) != window_)
     return;
 
   gfx::NativeCursor cursor = current_cursor_.GetNativeCursor();