fix more 64bit warnings

gm/typeface.cpp

 /*
  * Copyright 2012 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 "SkCanvas.h"
 #include "SkString.h"
@@ skipping 32 matching lines @@
     virtual SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(640, 480);
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         SkString text("Typefaces are fun!");
         SkScalar y = 0;
 
         SkPaint paint;
         paint.setAntiAlias(true);
-        for (size_t i = 0; i < SK_ARRAY_COUNT(gFaces); i++) {
+        for (int i = 0; i < (int)SK_ARRAY_COUNT(gFaces); i++) {
             this->drawWithFace(text, i, y, paint, canvas);
         }
         // Now go backwards
         for (int i = SK_ARRAY_COUNT(gFaces) - 1; i >= 0; i--) {
             this->drawWithFace(text, i, y, paint, canvas);
         }
     }
 
 private:
     void drawWithFace(const SkString& text, int i, SkScalar& y, SkPaint& paint,
@@ skipping 148 matching lines @@
 
 private:
     typedef skiagm::GM INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new TypefaceGM; )
 DEF_GM( return new TypefaceStylesGM(false); )
 DEF_GM( return new TypefaceStylesGM(true); )