Change SkImageFilter's cropRect from SkIRect to a CropRect struct, containing an SkRect and flags indicating which parameters are set.

NOTE: this will require SK_CROP_RECT_IS_INT=1 to be set in Chrome until Blink has been updated to use SkImageFilter::CropRect. Include https://codereview.chromium.org/26528002/ with the Skia roll.

Note also that SK_CROP_RECT_IS_INT is a temporary measure until all call sites in Blink have been updated to use SkRect.

R=reed@google.com

Review URL: https://codereview.chromium.org/26371002

git-svn-id: http://skia.googlecode.com/svn/trunk@11692 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkColorFilterImageFilter.cpp b/src/effects/SkColorFilterImageFilter.cpp
index cfda0b7..a756a47 100755
--- a/src/effects/SkColorFilterImageFilter.cpp
+++ b/src/effects/SkColorFilterImageFilter.cpp
@@ -57,7 +57,7 @@
 };
 
 SkColorFilterImageFilter* SkColorFilterImageFilter::Create(SkColorFilter* cf,
-        SkImageFilter* input, const SkIRect* cropRect) {
+        SkImageFilter* input, const CropRect* cropRect) {
     SkASSERT(cf);
     SkScalar colorMatrix[20], inputMatrix[20];
     SkColorFilter* inputColorFilter;
@@ -76,7 +76,7 @@
 }
 
 SkColorFilterImageFilter::SkColorFilterImageFilter(SkColorFilter* cf,
-        SkImageFilter* input, const SkIRect* cropRect)
+        SkImageFilter* input, const CropRect* cropRect)
     : INHERITED(input, cropRect), fColorFilter(cf) {
     SkASSERT(cf);
     SkSafeRef(cf);
@@ -126,7 +126,7 @@
 }
 
 bool SkColorFilterImageFilter::asColorFilter(SkColorFilter** filter) const {
-    if (cropRect().isLargest()) {
+    if (!cropRectIsSet()) {
         if (filter) {
             *filter = fColorFilter;
             fColorFilter->ref();