Make uncached textures uncached from the get go.

src/gpu/gl/GrGLRenderTarget.h

Index: src/gpu/gl/GrGLRenderTarget.h
diff --git a/src/gpu/gl/GrGLRenderTarget.h b/src/gpu/gl/GrGLRenderTarget.h
index 09de571b9d3bc31b55f82efb489e5200570a8932..ed1e2b35d84e4978a1ce59621bab76f303fb3dbb 100644
--- a/src/gpu/gl/GrGLRenderTarget.h
+++ b/src/gpu/gl/GrGLRenderTarget.h
@@ -22,10 +22,10 @@ public:
     enum { kUnresolvableFBOID = 0 };
 
     struct IDDesc {
-        GrGLuint         fRTFBOID;
-        GrGLuint         fTexFBOID;
-        GrGLuint         fMSColorRenderbufferID;
-        bool             fIsWrapped;
+        GrGLuint                    fRTFBOID;
+        GrGLuint                    fTexFBOID;
+        GrGLuint                    fMSColorRenderbufferID;
+        GrGpuResource::LifeCycle    fLifeCycle;
     };
 
     GrGLRenderTarget(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&);