Tracking text selection on the browser side in OOPIF.

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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/browser/frame_host/render_widget_host_view_child_frame.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 274 matching lines @@
   host_->SetView(nullptr);
   host_ = nullptr;
   base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this);
 }
 
 void RenderWidgetHostViewChildFrame::SetTooltipText(
     const base::string16& tooltip_text) {
   frame_connector_->GetRootRenderWidgetHostView()->SetTooltipText(tooltip_text);
 }
 
-void RenderWidgetHostViewChildFrame::SelectionChanged(
-    const base::string16& text,
-    size_t offset,
-    const gfx::Range& range) {
-}
-
 void RenderWidgetHostViewChildFrame::LockCompositingSurface() {
   NOTIMPLEMENTED();
 }
 
 void RenderWidgetHostViewChildFrame::UnlockCompositingSurface() {
   NOTIMPLEMENTED();
 }
 
 void RenderWidgetHostViewChildFrame::RegisterSurfaceNamespaceId() {
   // If Destroy() has been called before we get here, host_ may be null.
@@ skipping 366 matching lines @@
 
 bool RenderWidgetHostViewChildFrame::IsChildFrameForTesting() const {
   return true;
 }
 
 cc::SurfaceId RenderWidgetHostViewChildFrame::SurfaceIdForTesting() const {
   return surface_id_;
 };
 
 }  // namespace content