Modify GrClipMaskManager to reflect logical constness

src/gpu/GrDrawTarget.h

Index: src/gpu/GrDrawTarget.h
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index cc9cda94f3639281b6c7529020a8e4803fde958b..6f129a1d972db24d680df21a1dcb2de3933b8c52 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -290,6 +290,7 @@ private:
     virtual bool setupClip(GrPipelineBuilder*,
                            GrPipelineBuilder::AutoRestoreFragmentProcessors*,
                            GrPipelineBuilder::AutoRestoreStencil*,
+                           GrPipelineBuilder::AutoRestoreProcessorDataManager*,
                            GrScissorState*,
                            const SkRect* devBounds) = 0;
 
@@ -342,6 +343,7 @@ private:
     virtual bool setupClip(GrPipelineBuilder*,
                            GrPipelineBuilder::AutoRestoreFragmentProcessors*,
                            GrPipelineBuilder::AutoRestoreStencil*,
+                           GrPipelineBuilder::AutoRestoreProcessorDataManager*,
                            GrScissorState* scissorState,
                            const SkRect* devBounds) override;