Make stencil buffers uncached for uncached render target textures

src/gpu/GrGpu.h

Index: src/gpu/GrGpu.h
diff --git a/src/gpu/GrGpu.h b/src/gpu/GrGpu.h
index 429c9c843927c1bbed41e079735ee3cdb636de60..d8558ad1f1bf67c19bba931cf4743e19a99242e7 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -478,7 +478,8 @@ private:
     // width and height may be larger than rt (if underlying API allows it).
     // Should attach the SB to the RT. Returns false if compatible sb could
     // not be created.
-    virtual bool createStencilBufferForRenderTarget(GrRenderTarget*, int width, int height) = 0;
+    virtual bool createStencilBufferForRenderTarget(GrRenderTarget*, bool budgeted,

[reed1, 2015/01/20 13:54:36]

Why not keep the enum that was created for this, rather than just a bool (which
is slightly harder to understand at a call-site)?

[Kimmo Kinnunen, 2015/01/20 14:05:48]

So it's consistent with the call that does the same thing with the texture.

[bsalomon, 2015/01/21 14:18:18]

I'm slightly hesitant to start depending on an enum from SkSurface all over the
gpu code. My pref is to leave it as a bool for now and perhaps the Budgeted enum
should graduate from the school of SkSurface to be in a pervasive Sk header in
the future (e.g. SkTypes.h) in a future CL. I'll be adding more Budgeted params
soon and can look at doing that.

+                                                    int width, int height) = 0;
 
     // attaches an existing SB to an existing RT.
     virtual bool attachStencilBufferToRenderTarget(GrStencilBuffer*, GrRenderTarget*) = 0;
@@ -487,7 +488,7 @@ private:
     virtual void clearStencil(GrRenderTarget* target) = 0;
 
     // Given a rt, find or create a stencil buffer and attach it
-    bool attachStencilBufferToRenderTarget(GrRenderTarget* target);
+    bool attachStencilBufferToRenderTarget(GrRenderTarget* target, bool budgeted);
 
     virtual void didAddGpuTraceMarker() = 0;
     virtual void didRemoveGpuTraceMarker() = 0;