Support tracking focused node element for OOPIFs.

content/renderer/render_widget.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_widget.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 2160 matching lines @@
     return;
   if (event.type == WebInputEvent::GestureTap) {
     UpdateTextInputState(ShowIme::IF_NEEDED, ChangeSource::FROM_NON_IME);
   } else if (event.type == WebInputEvent::GestureLongPress) {
     DCHECK(GetWebWidget());
     if (GetWebWidget()->textInputInfo().value.isEmpty())
       UpdateTextInputState(ShowIme::HIDE_IME, ChangeSource::FROM_NON_IME);
     else
       UpdateTextInputState(ShowIme::IF_NEEDED, ChangeSource::FROM_NON_IME);
   }
+// TODO(ananta): Piggyback off existing IPCs to communicate this information,
+// crbug/420130.
+#if defined(OS_WIN)
+  if (event.type != blink::WebGestureEvent::GestureTap)
+    return;
+
+  // TODO(estade): hit test the event against focused node to make sure
+  // the tap actually hit the focused node.
+  blink::WebTextInputType text_input_type = GetWebWidget()->textInputType();
+
+  Send(new ViewHostMsg_FocusedNodeTouched(
+      routing_id_, text_input_type != blink::WebTextInputTypeNone));
+#endif
 #endif
 }
 
 void RenderWidget::didOverscroll(
     const blink::WebFloatSize& overscrollDelta,
     const blink::WebFloatSize& accumulatedOverscroll,
     const blink::WebFloatPoint& position,
     const blink::WebFloatSize& velocity) {
 #if defined(OS_MACOSX)
   // On OSX the user can disable the elastic overscroll effect. If that's the
@@ skipping 120 matching lines @@
     // browser side (https://crbug.com/669219).
     // If there is no WebFrameWidget, then there will be no
     // InputMethodControllers for a WebLocalFrame.
     return nullptr;
   }
   return static_cast<blink::WebFrameWidget*>(GetWebWidget())
       ->getActiveWebInputMethodController();
 }
 
 }  // namespace content