Recycle stencil buffers across render targets.

src/gpu/GrGpu.h

Index: src/gpu/GrGpu.h
diff --git a/src/gpu/GrGpu.h b/src/gpu/GrGpu.h
index 2d5eaba8e824bc36df685ae05572cb2ae89bdeb6..a0950e001cffddce3fa8d93e21c7854cba815493 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -481,8 +481,7 @@ 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*, bool budgeted,
-                                                    int width, int height) = 0;
+    virtual bool createStencilBufferForRenderTarget(GrRenderTarget*, int width, int height) = 0;
 
     // attaches an existing SB to an existing RT.
     virtual bool attachStencilBufferToRenderTarget(GrStencilBuffer*, GrRenderTarget*) = 0;
@@ -491,7 +490,7 @@ private:
     virtual void clearStencil(GrRenderTarget* target) = 0;
 
     // Given a rt, find or create a stencil buffer and attach it
-    bool attachStencilBufferToRenderTarget(GrRenderTarget* target, bool budgeted);
+    bool attachStencilBufferToRenderTarget(GrRenderTarget* target);
 
     virtual void didAddGpuTraceMarker() = 0;
     virtual void didRemoveGpuTraceMarker() = 0;