Implement Android accessible hit testing using an IPC to the renderer process.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 24ff901dd48668f1c2535abbbab177c40cacb89e..9adc28c0ad9381ed123b43f155f75ef0cbc24ab4 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -2038,6 +2038,10 @@ gfx::Point RenderWidgetHostImpl::AccessibilityOriginInScreen(
   return view_->AccessibilityOriginInScreen(bounds);
 }
 
+void RenderWidgetHostImpl::AccessibilityHitTest(const gfx::Point& point) {
+  Send(new AccessibilityMsg_HitTest(GetRoutingID(), point));

[jam, 2014/05/20 04:31:14]

nit: routing_id_ (I know there are examples of the method, but we should change
them)

+}
+
 void RenderWidgetHostImpl::AccessibilityFatalError() {
   Send(new AccessibilityMsg_FatalError(GetRoutingID()));
   view_->SetBrowserAccessibilityManager(NULL);