Adding int cast to prevent warning

samplecode/SamplePictFile.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleCode.h"
 #include "SkDumpCanvas.h"
 #include "SkView.h"
@@ skipping 76 matching lines @@
 
     virtual bool onEvent(const SkEvent& evt) SK_OVERRIDE {
         if (evt.isType("PictFileView::toggleBBox")) {
             fBBox = (BBoxType)((fBBox + 1) % kBBoxTypeCount);
             return true;
         }
         return this->INHERITED::onEvent(evt);
     }
 
     virtual void onDrawContent(SkCanvas* canvas) SK_OVERRIDE {
-        SkASSERT(fBBox < kBBoxTypeCount);
+        SkASSERT(static_cast<int>(fBBox) < kBBoxTypeCount);
         SkPicture** picture = fPictures + fBBox;
 
         if (!*picture) {
             *picture = LoadPicture(fFilename.c_str(), fBBox);
         }
         if (*picture) {
             canvas->drawPicture(**picture);
         }
     }
 
@@ skipping 94 matching lines @@
 SampleView* CreateSamplePictFileView(const char filename[]) {
     return new PictFileView(filename);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 #if 0
 static SkView* MyFactory() { return new PictFileView; }
 static SkViewRegister reg(MyFactory);
 #endif