Add class GrGLTextureRenderTarget for GL texture/rendertarget objects

src/gpu/GrResourceCache2.h

Index: src/gpu/GrResourceCache2.h
diff --git a/src/gpu/GrResourceCache2.h b/src/gpu/GrResourceCache2.h
index e10b45a2cc137768aae861231d67cd72f4af3c6f..a365a5aec77f06c28551b19e3bfe8fc2b7bfb840 100644
--- a/src/gpu/GrResourceCache2.h
+++ b/src/gpu/GrResourceCache2.h
@@ -42,9 +42,7 @@ public:
 
 private:
 #ifdef SK_DEBUG
-    bool isInCache(const GrGpuResource* r) const {
-        return fResources.isInList(r);
-    }
+    bool isInCache(const GrGpuResource* r) const { return fResources.isInList(r); }
 #endif
 
     class AvailableForScratchUse;