Change some more GMs to clear to opaque black, not transparent black.

gm/resizeimagefilter.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkBitmapDevice.h"
 #include "SkBitmapSource.h"
@@ skipping 41 matching lines @@
         canvas->drawOval(ovalRect, paint);
         canvas->restore(); // for saveLayer
         canvas->restore();
     }
 
     virtual SkISize onISize() {
         return SkISize::Make(520, 100);
     }
 
     virtual void onDraw(SkCanvas* canvas) {
-        canvas->clear(0x00000000);
+        canvas->clear(SK_ColorBLACK);
 
         SkRect srcRect = SkRect::MakeWH(96, 96);
 
         SkSize deviceSize = SkSize::Make(16, 16);
         draw(canvas,
              srcRect,
              deviceSize,
              kNone_SkFilterQuality);
 
         canvas->translate(srcRect.width() + SkIntToScalar(10), 0);
@@ skipping 40 matching lines @@
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new ResizeGM; }
 static GMRegistry reg(MyFactory);
 
 }