Route touch-events for WebViewGuest directly to guest renderer.

content/browser/browser_plugin/browser_plugin_guest.cc

Index: content/browser/browser_plugin/browser_plugin_guest.cc
diff --git a/content/browser/browser_plugin/browser_plugin_guest.cc b/content/browser/browser_plugin/browser_plugin_guest.cc
index cef0842a37631d3a1d7493dcc42ed1bb59cca4a9..20046f741977aefbf86973cc5a8c55fd60c5359d 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.cc
+++ b/content/browser/browser_plugin/browser_plugin_guest.cc
@@ -506,6 +506,16 @@ gfx::Point BrowserPluginGuest::GetScreenCoordinates(
   return screen_pos;
 }
 
+gfx::PointF BrowserPluginGuest::GetScreenCoordinates(
+    const gfx::PointF& relative_position) const {
+  if (!attached())
+    return relative_position;
+
+  gfx::PointF screen_pos(relative_position);
+  screen_pos += guest_window_rect_.OffsetFromOrigin();
+  return screen_pos;
+}
+
 void BrowserPluginGuest::SendMessageToEmbedder(IPC::Message* msg) {
   // During tests, attache() may be true when there is no owner_web_contents_;
   // in this case just queue any messages we receive.