Don't use the usage flag to determine whether an SkGpuDevice needs to be cleared. Fixes regression in testimagefilters introduced by r3565. Also add baselines for testimagefilters gm on windows.
git-svn-id: http://skia.googlecode.com/svn/trunk@3635 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index c7bae34..c2e090c 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -1872,8 +1872,8 @@
GrContext::TextureCacheEntry cacheEntry;
GrTexture* texture;
SkAutoTUnref<GrTexture> tunref;
- // Skia's convention is to only clear a device if it is a non-opaque layer.
- bool needClear = !isOpaque && kSaveLayer_Usage == usage;
+ // Skia's convention is to only clear a device if it is non-opaque.
+ bool needClear = !isOpaque;
#if CACHE_COMPATIBLE_DEVICE_TEXTURES
// layers are never draw in repeat modes, so we can request an approx