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

content/browser/renderer_host/render_widget_host_impl.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/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 
 #include <set>
 #include <tuple>
@@ skipping 1784 matching lines @@
   if (view_->GetViewBounds() == last_view_screen_rect_ &&
       view_->GetBoundsInRootWindow() == last_window_screen_rect_) {
     return;
   }
 
   SendScreenRects();
 }
 
 void RenderWidgetHostImpl::OnRequestMove(const gfx::Rect& pos) {
   if (view_) {
-    view_->SetBounds(pos);
+    view_->RequestTopLevelBoundsInScreen(pos);
     Send(new ViewMsg_Move_ACK(routing_id_));
   }
 }
 
 bool RenderWidgetHostImpl::OnSwapCompositorFrame(
     const IPC::Message& message) {
   // This trace event is used in
   // chrome/browser/extensions/api/cast_streaming/performance_test.cc
   TRACE_EVENT0("test_fps,benchmark", "OnSwapCompositorFrame");
 
@@ skipping 693 matching lines @@
     // different from the receiver's.
     file_system_file.url =
         GURL(storage::GetIsolatedFileSystemRootURIString(
                  file_system_url.origin(), filesystem_id, std::string())
                  .append(register_name));
     file_system_file.filesystem_id = filesystem_id;
   }
 }
 
 }  // namespace content