ResizeSynchronously should resize the visible viewport as well.

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 "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 826 matching lines @@
     set_next_paint_is_resize_ack();
 
   if (fullscreen_change)
     DidToggleFullscreen();
 
   // If a resize ack is requested and it isn't set-up, then no more resizes will
   // come in and in general things will go wrong.
   DCHECK(resize_ack != SEND_RESIZE_ACK || next_paint_is_resize_ack());
 }
 
-void RenderWidget::ResizeSynchronously(
-    const gfx::Rect& new_position,
-    const gfx::Size& visible_viewport_size) {
+void RenderWidget::ResizeSynchronously(const gfx::Rect& new_position) {

[Avi (use Gerrit), 2015/02/03 01:30:42]

ditto

[bokan, 2015/02/03 03:13:17]

Done.

   Resize(new_position.size(),
          new_position.size(),
          top_controls_shrink_blink_size_,
          top_controls_height_,
-         visible_viewport_size,
+         new_position.size(),
          gfx::Rect(),
          is_fullscreen_,
          NO_RESIZE_ACK);
   view_screen_rect_ = new_position;
   window_screen_rect_ = new_position;
   if (!did_show_)
     initial_pos_ = new_position;
 }
 
 void RenderWidget::OnClose() {
@@ skipping 745 matching lines @@
   }
 
   if (!resizing_mode_selector_->is_synchronous_mode()) {
     if (did_show_) {
       Send(new ViewHostMsg_RequestMove(routing_id_, pos));
       SetPendingWindowRect(pos);
     } else {
       initial_pos_ = pos;
     }
   } else {
-    ResizeSynchronously(pos, visible_viewport_size_);
+    ResizeSynchronously(pos);

[Avi (use Gerrit), 2015/02/03 01:30:42]

ditto

[bokan, 2015/02/03 03:13:17]

Done.

   }
 }
 
 void RenderWidget::SetPendingWindowRect(const WebRect& rect) {
   pending_window_rect_ = rect;
   pending_window_rect_count_++;
 }
 
 WebRect RenderWidget::rootWindowRect() {
   if (pending_window_rect_count_) {
@@ skipping 797 matching lines @@
 void RenderWidget::RegisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.AddObserver(frame);
 }
 
 void RenderWidget::UnregisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.RemoveObserver(frame);
 }
 #endif  // defined(VIDEO_HOLE)
 
 }  // namespace content