use (temp) gpu-imagefilter-cache for applyFilter

src/image/SkImage_Gpu.cpp

Index: src/image/SkImage_Gpu.cpp
diff --git a/src/image/SkImage_Gpu.cpp b/src/image/SkImage_Gpu.cpp
index ed9ecffa51c91e1fc61ca147be4c485c465e8d12..e6d6edf79f782e8988f63b1aa0f7f5587dba87d3 100644
--- a/src/image/SkImage_Gpu.cpp
+++ b/src/image/SkImage_Gpu.cpp
@@ -238,7 +238,8 @@ SkImage* SkImage_Gpu::onApplyFilter(SkImageFilter* filter, SkIPoint* offsetResul
 
         const SkIRect clipBounds = srcBounds;
         SkGpuImageFilterProxy proxy(fTexture->getContext());
-        SkImageFilter::Context ctx(SkMatrix::I(), clipBounds, SkImageFilter::Cache::Get());
+        SkAutoTUnref<SkImageFilter::Cache> cache(SkGpuDevice::NewImageFilterCache());
+        SkImageFilter::Context ctx(SkMatrix::I(), clipBounds, cache);
 
         SkBitmap dst;
         if (!filter->filterImage(&proxy, src, ctx, &dst, offsetResult)) {