Move all filters-related files from core/platform to platform.

Source/core/platform/graphics/filters/SourceAlpha.cpp

Index: Source/core/platform/graphics/filters/SourceAlpha.cpp
diff --git a/Source/core/platform/graphics/filters/SourceAlpha.cpp b/Source/core/platform/graphics/filters/SourceAlpha.cpp
deleted file mode 100644
index 5420dc3249f3bd89646b49edf759d404aaab8e3f..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/filters/SourceAlpha.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-
-#include "core/platform/graphics/filters/SourceAlpha.h"
-
-#include "platform/graphics/Color.h"
-#include "platform/graphics/GraphicsContext.h"
-#include "platform/graphics/filters/Filter.h"
-#include "platform/text/TextStream.h"
-#include "wtf/StdLibExtras.h"
-#include "wtf/text/WTFString.h"
-
-namespace WebCore {
-
-PassRefPtr<SourceAlpha> SourceAlpha::create(Filter* filter)
-{
-    return adoptRef(new SourceAlpha(filter));
-}
-
-const AtomicString& SourceAlpha::effectName()
-{
-    DEFINE_STATIC_LOCAL(const AtomicString, s_effectName, ("SourceAlpha", AtomicString::ConstructFromLiteral));
-    return s_effectName;
-}
-
-void SourceAlpha::determineAbsolutePaintRect()
-{
-    Filter* filter = this->filter();
-    FloatRect paintRect = filter->sourceImageRect();
-    paintRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
-    setAbsolutePaintRect(enclosingIntRect(paintRect));
-}
-
-void SourceAlpha::applySoftware()
-{
-    ImageBuffer* resultImage = createImageBufferResult();
-    Filter* filter = this->filter();
-    if (!resultImage || !filter->sourceImage())
-        return;
-
-    setIsAlphaImage(true);
-
-    FloatRect imageRect(FloatPoint(), absolutePaintRect().size());
-    GraphicsContext* filterContext = resultImage->context();
-    filterContext->fillRect(imageRect, Color::black);
-    filterContext->drawImageBuffer(filter->sourceImage(), IntPoint(), CompositeDestinationIn);
-}
-
-TextStream& SourceAlpha::externalRepresentation(TextStream& ts, int indent) const
-{
-    writeIndent(ts, indent);
-    ts << "[SourceAlpha]\n";
-    return ts;
-}
-
-} // namespace WebCore