Image filters: fix srcRect computation for FETile.

third_party/WebKit/Source/platform/graphics/filters/FETile.cpp

Index: third_party/WebKit/Source/platform/graphics/filters/FETile.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/filters/FETile.cpp b/third_party/WebKit/Source/platform/graphics/filters/FETile.cpp
index 8de356e04ee72653f4c86ea8e8b2e09f69018a8d..f42ffe95fe678c28391023427663e69e0a3fc82b 100644
--- a/third_party/WebKit/Source/platform/graphics/filters/FETile.cpp
+++ b/third_party/WebKit/Source/platform/graphics/filters/FETile.cpp
@@ -46,7 +46,7 @@ FloatRect FETile::mapPaintRect(const FloatRect& rect, bool forward)
 PassRefPtr<SkImageFilter> FETile::createImageFilter(SkiaImageFilterBuilder& builder)
 {
     RefPtr<SkImageFilter> input(builder.build(inputEffect(0), operatingColorSpace()));
-    FloatRect srcRect = inputEffect(0)->applyEffectBoundaries(filter()->filterRegion());
+    FloatRect srcRect = inputEffect(0)->filterPrimitiveSubregion();
     FloatRect dstRect = applyEffectBoundaries(filter()->filterRegion());
     return adoptRef(SkTileImageFilter::Create(srcRect, dstRect, input.get()));
 }