Change Widget subclasses to use a CullRect instead of an IntRect for painting.

third_party/WebKit/Source/web/WebPluginContainerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 51 matching lines @@
 #include "core/paint/LayoutObjectDrawingRecorder.h"
 #include "core/paint/PaintLayer.h"
 #include "modules/plugins/PluginOcclusionSupport.h"
 #include "platform/HostWindow.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/PlatformGestureEvent.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/exported/WrappedResourceResponse.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayer.h"
+#include "platform/graphics/paint/CullRect.h"
 #include "platform/scroll/ScrollAnimator.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebClipboard.h"
 #include "public/platform/WebCompositorSupport.h"
 #include "public/platform/WebCursorInfo.h"
 #include "public/platform/WebDragData.h"
 #include "public/platform/WebExternalTextureLayer.h"
 #include "public/platform/WebRect.h"
 #include "public/platform/WebString.h"
@@ skipping 21 matching lines @@
     Widget::setFrameRect(frameRect);
     reportGeometry();
 }
 
 void WebPluginContainerImpl::layoutIfNeeded()
 {
     RELEASE_ASSERT(m_webPlugin);
     m_webPlugin->layoutIfNeeded();
 }
 
-void WebPluginContainerImpl::paint(GraphicsContext* context, const IntRect& rect) const
+void WebPluginContainerImpl::paint(GraphicsContext* context, const CullRect& cullRect) const
 {
     if (!parent())
         return;
 
     // Don't paint anything if the plugin doesn't intersect.
-    if (!frameRect().intersects(rect))
+    if (!cullRect.intersectsCullRect(frameRect()))
         return;
 
     if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*context, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, LayoutPoint()))
         return;
 
-    LayoutObjectDrawingRecorder drawingRecorder(*context, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, rect, LayoutPoint());
+    LayoutObjectDrawingRecorder drawingRecorder(*context, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, cullRect.m_rect, LayoutPoint());
     context->save();
 
     ASSERT(parent()->isFrameView());
     FrameView* view =  toFrameView(parent());
 
     // The plugin is positioned in the root frame's coordinates, so it needs to
     // be painted in them too.
     IntPoint origin = view->contentsToRootFrame(IntPoint(0, 0));
     context->translate(static_cast<float>(-origin.x()), static_cast<float>(-origin.y()));
 
     WebCanvas* canvas = context->canvas();
 
-    IntRect windowRect = view->contentsToRootFrame(rect);
+    IntRect windowRect = view->contentsToRootFrame(cullRect.m_rect);
     m_webPlugin->paint(canvas, windowRect);
 
     context->restore();
 }
 
 void WebPluginContainerImpl::invalidateRect(const IntRect& rect)
 {
     if (!parent())
         return;
 
@@ skipping 817 matching lines @@
     clipRect.move(-windowRect.x(), -windowRect.y());
     unobscuredRect.move(-windowRect.x(), -windowRect.y());
 
     getPluginOcclusions(m_element, this->parent(), frameRect(), cutOutRects);
     // Convert to the plugin position.
     for (size_t i = 0; i < cutOutRects.size(); i++)
         cutOutRects[i].move(-frameRect().x(), -frameRect().y());
 }
 
 } // namespace blink