text: // 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.
  
  #ifndef CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
  #define CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
  
  #include "content/common/content_export.h"
  #include "third_party/WebKit/Source/Platform/chromium/public/WebVector.h"
  
  namespace gfx {
  class Rect;
  class Size;
  }
  
  namespace WebKit {
  struct WebRect;
  }
  
  namespace content {
  
  // Contains functions to calculate proper scaling factor and popup size
  class DisambiguationPopupHelper {
   public:
    CONTENT_EXPORT static float ComputeZoomAreaAndScaleFactor(
        const gfx::Rect& tap_rect,
        const WebKit::WebVector<WebKit::WebRect>& target_rects,
        const gfx::Size& screen_size,
        const gfx::Size& visible_content_size,
        float total_scale,
        gfx::Rect* zoom_rect);
  };
  
  }  // namespace content
  
  #endif  // CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
  