Cleanup patch to move all of SkImageFilterUtils into SkImageFilter.

src/core/SkImageFilterUtils.cpp

-/*
- * Copyright 2013 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkMatrix.h"
-
-#if SK_SUPPORT_GPU
-#include "GrTexture.h"
-#include "SkImageFilterUtils.h"
-#include "SkBitmap.h"
-#include "SkGrPixelRef.h"
-#include "SkGr.h"
-
-bool SkImageFilterUtils::WrapTexture(GrTexture* texture, int width, int height, SkBitmap* result) {
-    SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
-    result->setConfig(info);
-    result->setPixelRef(SkNEW_ARGS(SkGrPixelRef, (info, texture)))->unref();
-    return true;
-}
-
-bool SkImageFilterUtils::GetInputResultGPU(const SkImageFilter* filter, SkImageFilter::Proxy* proxy,
-                                           const SkBitmap& src, const SkMatrix& ctm,
-                                           SkBitmap* result, SkIPoint* offset) {
-    // Ensure that GrContext calls under filterImage and filterImageGPU below will see an identity
-    // matrix with no clip and that the matrix, clip, and render target set before this function was
-    // called are restored before we return to the caller.
-    GrContext* context = src.getTexture()->getContext();
-    GrContext::AutoWideOpenIdentityDraw awoid(context, NULL);
-    if (!filter) {
-        offset->fX = offset->fY = 0;
-        *result = src;
-        return true;
-    } else if (filter->canFilterImageGPU()) {
-        return filter->filterImageGPU(proxy, src, ctm, result, offset);
-    } else {
-        if (filter->filterImage(proxy, src, ctm, result, offset)) {
-            if (!result->getTexture()) {
-                SkImageInfo info;
-                if (!result->asImageInfo(&info)) {
-                    return false;
-                }
-                GrTexture* resultTex = GrLockAndRefCachedBitmapTexture(context, *result, NULL);
-                result->setPixelRef(new SkGrPixelRef(info, resultTex))->unref();
-                GrUnlockAndUnrefCachedBitmapTexture(resultTex);
-            }
-            return true;
-        } else {
-            return false;
-        }
-    }
-}
-#endif