1 files changed, 42 insertions, 0 deletions
diff --git a/cc/render_surface.cc b/cc/render_surface.cc
new file mode 100644
index 0000000..320a3d8
--- /dev/null
+++ b/cc/render_surface.cc
@@ -0,0 +1,42 @@
+// Copyright 2010 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 "config.h"
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "RenderSurfaceChromium.h"
+
+#include "CCMathUtil.h"
+#include "LayerChromium.h"
+#include <public/WebTransformationMatrix.h>
+
+using WebKit::WebTransformationMatrix;
+
+namespace cc {
+
+RenderSurfaceChromium::RenderSurfaceChromium(LayerChromium* owningLayer)
+    : m_owningLayer(owningLayer)
+    , m_drawOpacity(1)
+    , m_drawOpacityIsAnimating(false)
+    , m_targetSurfaceTransformsAreAnimating(false)
+    , m_screenSpaceTransformsAreAnimating(false)
+    , m_nearestAncestorThatMovesPixels(0)
+{
+}
+
+RenderSurfaceChromium::~RenderSurfaceChromium()
+{
+}
+
+FloatRect RenderSurfaceChromium::drawableContentRect() const
+{
+    FloatRect drawableContentRect = CCMathUtil::mapClippedRect(m_drawTransform, m_contentRect);
+    if (m_owningLayer->hasReplica())
+        drawableContentRect.unite(CCMathUtil::mapClippedRect(m_replicaDrawTransform, m_contentRect));
+    return drawableContentRect;
+}
+
+}
+#endif // USE(ACCELERATED_COMPOSITING)