Start using RenderTargetProxy (omnibus)

src/effects/GrAlphaThresholdFragmentProcessor.h

Index: src/effects/GrAlphaThresholdFragmentProcessor.h
diff --git a/src/effects/GrAlphaThresholdFragmentProcessor.h b/src/effects/GrAlphaThresholdFragmentProcessor.h
index c5b8d4ede29a53e727254a0554fb51b0288e0f03..8416499b0d6534a3966eed6b6aa0c55818780437 100644
--- a/src/effects/GrAlphaThresholdFragmentProcessor.h
+++ b/src/effects/GrAlphaThresholdFragmentProcessor.h
@@ -17,6 +17,8 @@
 #include "GrFragmentProcessor.h"
 #include "GrProcessorUnitTest.h"
 
+class GrTextureProxy;
+
 class GrAlphaThresholdFragmentProcessor : public GrFragmentProcessor {
 
 public:
@@ -27,6 +29,13 @@ public:
                                            float outerThreshold,
                                            const SkIRect& bounds);
 
+    static sk_sp<GrFragmentProcessor> Make(GrTextureProxy* texture,
+                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                           GrTextureProxy* maskTexture,
+                                           float innerThreshold,
+                                           float outerThreshold,
+                                           const SkIRect& bounds);
+
     const char* name() const override { return "Alpha Threshold"; }
 
     float innerThreshold() const { return fInnerThreshold; }