Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp

Index: Source/core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp
diff --git a/Source/core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp b/Source/core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp
deleted file mode 100644
index 3fed148775f16ab4dbd4bfab511327dde6e245eb..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2012 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 INC. 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 INC. 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 "core/platform/graphics/OpaqueRectTrackingContentLayerDelegate.h"
-
-#include "core/platform/graphics/GraphicsContext.h"
-#include "platform/EventTracer.h"
-#include "platform/geometry/IntRect.h"
-#include "platform/transforms/AffineTransform.h"
-#include "public/platform/WebFloatRect.h"
-#include "public/platform/WebRect.h"
-
-using blink::WebFloatRect;
-using blink::WebRect;
-
-namespace WebCore {
-
-OpaqueRectTrackingContentLayerDelegate::OpaqueRectTrackingContentLayerDelegate(GraphicsContextPainter* painter)
-    : m_painter(painter)
-    , m_opaque(false)
-{
-}
-
-OpaqueRectTrackingContentLayerDelegate::~OpaqueRectTrackingContentLayerDelegate()
-{
-}
-
-void OpaqueRectTrackingContentLayerDelegate::paintContents(SkCanvas* canvas, const WebRect& clip, bool canPaintLCDText, WebFloatRect& opaque)
-{
-    static const unsigned char* annotationsEnabled = 0;
-    if (UNLIKELY(!annotationsEnabled))
-        annotationsEnabled = EventTracer::getTraceCategoryEnabledFlag(TRACE_DISABLED_BY_DEFAULT("blink.graphics_context_annotations"));
-
-    GraphicsContext context(canvas);
-    context.setTrackOpaqueRegion(!m_opaque);
-    context.setCertainlyOpaque(m_opaque);
-    context.setShouldSmoothFonts(canPaintLCDText);
-
-    if (*annotationsEnabled)
-        context.setAnnotationMode(AnnotateAll);
-
-    // Record transform prior to painting, as all opaque tracking will be
-    // relative to this current value.
-    AffineTransform canvasToContentTransform = context.getCTM().inverse();
-
-    m_painter->paint(context, clip);
-
-    // Transform tracked opaque paints back to our layer's content space.
-    ASSERT(canvasToContentTransform.isInvertible());
-    ASSERT(canvasToContentTransform.preservesAxisAlignment());
-    opaque = canvasToContentTransform.mapRect(context.opaqueRegion().asRect());
-}
-
-}