Disable partial swaps for webview guest renderer until we can figure out how to do that properly.

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/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 121 matching lines @@
       surface_id_(0),
       webwidget_(NULL),
       opener_id_(MSG_ROUTING_NONE),
       init_complete_(false),
       current_paint_buf_(NULL),
       next_paint_flags_(0),
       filtered_time_per_frame_(0.0f),
       update_reply_pending_(false),
       need_update_rect_for_auto_resize_(false),
       using_asynchronous_swapbuffers_(false),
+      allow_partial_swap_(true),
       num_swapbuffers_complete_pending_(0),
       did_show_(false),
       is_hidden_(false),
       is_fullscreen_(false),
       needs_repainting_on_restore_(false),
       has_focus_(false),
       handling_input_event_(false),
       handling_ime_event_(false),
       closing_(false),
       is_swapped_out_(swapped_out),
@@ skipping 2003 matching lines @@
 bool RenderWidget::WillHandleGestureEvent(
     const WebKit::WebGestureEvent& event) {
   return false;
 }
 
 bool RenderWidget::HasTouchEventHandlersAt(const gfx::Point& point) const {
   return true;
 }
 
 }  // namespace content