Guard against most unintentionally ephemeral SkAutoFoo instantiations.

src/core/SkRasterClip.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRasterClip_DEFINED
 #define SkRasterClip_DEFINED
 
@@ skipping 94 matching lines @@
 public:
     SkAutoRasterClipValidate(const SkRasterClip& rc) : fRC(rc) {
         fRC.validate();
     }
     ~SkAutoRasterClipValidate() {
         fRC.validate();
     }
 private:
     const SkRasterClip& fRC;
 };
+#define SkAutoRasterClipValidate(...) SK_REQUIRE_LOCAL_VAR(SkAutoRasterClipValidate)
 
 #ifdef SK_DEBUG
     #define AUTO_RASTERCLIP_VALIDATE(rc)    SkAutoRasterClipValidate arcv(rc)
 #else
     #define AUTO_RASTERCLIP_VALIDATE(rc)
 #endif
 
 ///////////////////////////////////////////////////////////////////////////////
 
 /**
@@ skipping 28 matching lines @@
 
 private:
     SkRegion        fBWRgn;
     SkAAClipBlitter fAABlitter;
     // what we return
     const SkRegion* fClipRgn;
     SkBlitter* fBlitter;
 };
 
 #endif