text: // Copyright 2013 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.
  
  #ifndef CONTENT_RENDERER_RESIZING_MODE_SELECTOR_H_
  #define CONTENT_RENDERER_RESIZING_MODE_SELECTOR_H_
  
  #include "base/macros.h"
  
  struct ViewMsg_Resize_Params;
  
  namespace content {
  
  class RenderWidget;
  
  // Enables switching between two modes of resizing:
  // 1) The "normal" (asynchronous) resizing, which involves sending messages to
  //    and receiving them from host; and
  // 2) The synchronous mode, which short-circuits the resizing logic to operate
  //    strictly inside renderer.
  // The latter is necessary to support a handful of layout tests that were
  // written with the expectation of a synchronous resize, and we're going to
  // eventually rewrite or remove all of them. See http://crbug.com/309760 for
  // details.
  class ResizingModeSelector {
   public:
    ResizingModeSelector();
    bool NeverUsesSynchronousResize() const;
    bool ShouldAbortOnResize(RenderWidget* widget,
                             const ViewMsg_Resize_Params& params);
  
    void set_is_synchronous_mode(bool mode);
    bool is_synchronous_mode() const;
  
   private:
    bool is_synchronous_mode_;
  
    DISALLOW_COPY_AND_ASSIGN(ResizingModeSelector);
  };
  
  }  // namespace content
  
  #endif  // CONTENT_RENDERER_RESIZING_MODE_SELECTOR_H_
  