Revert of GrResourceCache2 manages scratch texture.

src/effects/gradients/SkGradientShader.cpp

Index: src/effects/gradients/SkGradientShader.cpp
diff --git a/src/effects/gradients/SkGradientShader.cpp b/src/effects/gradients/SkGradientShader.cpp
index 39f0e75df1904f3e8e8c2cf265af370abaacc281..d25873b438502c84bd3a880f84524ed6bff21df0 100644
--- a/src/effects/gradients/SkGradientShader.cpp
+++ b/src/effects/gradients/SkGradientShader.cpp
@@ -1164,10 +1164,15 @@
             fCoordTransform.reset(kCoordSet, matrix, fAtlas->getTexture());
             fTextureAccess.reset(fAtlas->getTexture(), params);
         } else {
-            SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(ctx, bitmap, &params));
+            GrTexture* texture = GrLockAndRefCachedBitmapTexture(ctx, bitmap, &params);
             fCoordTransform.reset(kCoordSet, matrix, texture);
             fTextureAccess.reset(texture, params);
             fYCoord = SK_ScalarHalf;
+
+            // Unlock immediately, this is not great, but we don't have a way of
+            // knowing when else to unlock it currently, so it may get purged from
+            // the cache, but it'll still be ref'd until it's no longer being used.
+            GrUnlockAndUnrefCachedBitmapTexture(texture);
         }
         this->addTextureAccess(&fTextureAccess);
     }