Revert of Add GrResourceCache2.

src/gpu/GrClipMaskManager.h

Index: src/gpu/GrClipMaskManager.h
diff --git a/src/gpu/GrClipMaskManager.h b/src/gpu/GrClipMaskManager.h
index ea16fc842b5b283502d93ed87c4f8a5726019fc8..c3a21fd8a2b1e9d6771ebde48bbdaa2731b28b85 100644
--- a/src/gpu/GrClipMaskManager.h
+++ b/src/gpu/GrClipMaskManager.h
@@ -53,11 +53,7 @@
     bool setupClipping(const GrClipData* clipDataIn, GrDrawState::AutoRestoreEffects*,
                        const SkRect* devBounds);
 
-    /**
-     * Purge resources to free up memory. TODO: This class shouldn't hold any long lived refs
-     * which will allow ResourceCache2 to automatically purge anything this class has created.
-     */
-    void purgeResources();
+    void releaseResources();
 
     bool isClipInStencil() const {
         return kStencil_ClipMaskType == fCurrClipMaskType;