Initial import attempt, just to play with. Many things disabled/removed

ui/cc/cc/CCSharedQuadState.cpp

Index: ui/cc/cc/CCSharedQuadState.cpp
diff --git a/ui/cc/cc/CCSharedQuadState.cpp b/ui/cc/cc/CCSharedQuadState.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..536b39867d502205b122797d0b135baa63ec8494
--- /dev/null
+++ b/ui/cc/cc/CCSharedQuadState.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "cc/CCSharedQuadState.h"
+
+using WebKit::WebTransformationMatrix;
+
+namespace WebCore {
+
+PassOwnPtr<CCSharedQuadState> CCSharedQuadState::create(const WebTransformationMatrix& quadTransform, const WebTransformationMatrix& layerTransform, const IntRect& layerRect, const IntRect& scissorRect, float opacity, bool opaque)
+{
+    return adoptPtr(new CCSharedQuadState(quadTransform, layerTransform, layerRect, scissorRect, opacity, opaque));
+}
+
+CCSharedQuadState::CCSharedQuadState(const WebTransformationMatrix& quadTransform, const WebTransformationMatrix& layerTransform, const IntRect& layerRect, const IntRect& scissorRect, float opacity, bool opaque)
+    : m_quadTransform(quadTransform)
+    , m_layerTransform(layerTransform)
+    , m_layerRect(layerRect)
+    , m_scissorRect(scissorRect)
+    , m_opacity(opacity)
+    , m_opaque(opaque)
+{
+}
+
+bool CCSharedQuadState::isLayerAxisAlignedIntRect() const
+{
+    // Note: this doesn't consider window or projection matrices.
+    // Assume that they're orthonormal and have integer scales and translations.
+    FloatQuad quad = quadTransform().mapQuad(FloatQuad(layerRect()));
+    return quad.isRectilinear() && quad.boundingBox().isExpressibleAsIntRect();
+}
+
+}