Image filters: change applyCropRect() to take a src rect.

src/core/SkImageFilter.cpp

 /*
  * Copyright 2012 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 "SkImageFilter.h"
 
 #include "SkBitmap.h"
@@ skipping 376 matching lines @@
     if (!this->isColorFilterNode(filterPtr)) {
         return false;
     }
     if (nullptr != this->getInput(0) || (*filterPtr)->affectsTransparentBlack()) {
         (*filterPtr)->unref();
         return false;
     }
     return true;
 }
 
-bool SkImageFilter::applyCropRect(const Context& ctx, const SkBitmap& src,
-                                  const SkIPoint& srcOffset, SkIRect* dstBounds,
-                                  SkIRect* srcBounds) const {
-    SkIRect storage;
-    if (!srcBounds) {
-        srcBounds = &storage;
-    }
-    src.getBounds(srcBounds);
-    srcBounds->offset(srcOffset);
-    this->onFilterNodeBounds(*srcBounds, ctx.ctm(), dstBounds, kForward_MapDirection);
+bool SkImageFilter::applyCropRect(const Context& ctx, const SkIRect& srcBounds,
+                                  SkIRect* dstBounds) const {
+    this->onFilterNodeBounds(srcBounds, ctx.ctm(), dstBounds, kForward_MapDirection);
     fCropRect.applyTo(*dstBounds, ctx.ctm(), dstBounds);
     // Intersect against the clip bounds, in case the crop rect has
     // grown the bounds beyond the original clip. This can happen for
     // example in tiling, where the clip is much smaller than the filtered
     // primitive. If we didn't do this, we would be processing the filter
     // at the full crop rect size in every tile.
     return dstBounds->intersect(ctx.clipBounds());
 }
 
 bool SkImageFilter::applyCropRect(const Context& ctx, Proxy* proxy, const SkBitmap& src,
@@ skipping 242 matching lines @@
     }
     return dev;
 }
 
 bool SkImageFilter::DeviceProxy::filterImage(const SkImageFilter* filter, const SkBitmap& src,
                                        const SkImageFilter::Context& ctx,
                                        SkBitmap* result, SkIPoint* offset) {
     return fDevice->filterImage(filter, src, ctx, result, offset);
 }