Remove RWHV::SetBounds() from the public API, and make comments clearer.

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 111 matching lines @@
 }
 
 RenderWidgetHost* RenderWidgetHostViewChildFrame::GetRenderWidgetHost() const {
   return host_;
 }
 
 void RenderWidgetHostViewChildFrame::SetSize(const gfx::Size& size) {
   host_->WasResized();
 }
 
-void RenderWidgetHostViewChildFrame::SetBounds(const gfx::Rect& rect) {
+void RenderWidgetHostViewChildFrame::RequestTopLevelBoundsInScreen(
+    const gfx::Rect& rect) {
   SetSize(rect.size());
 
   if (rect != last_screen_rect_) {
     last_screen_rect_ = rect;
     host_->SendScreenRects();
   }
 }
 
 void RenderWidgetHostViewChildFrame::Focus() {
 }
@@ skipping 604 matching lines @@
 
 bool RenderWidgetHostViewChildFrame::IsChildFrameForTesting() const {
   return true;
 }
 
 cc::SurfaceId RenderWidgetHostViewChildFrame::SurfaceIdForTesting() const {
   return cc::SurfaceId(frame_sink_id_, local_surface_id_);
 };
 
 }  // namespace content