More win64 warning fixes

src/gpu/GrSWMaskHelper.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 "GrSWMaskHelper.h"
 
 #include "GrDrawState.h"
@@ skipping 234 matching lines @@
 #endif
 
         desc.fConfig = fmt_to_config(fCompressedFormat);
         SkASSERT(fContext->getGpu()->caps()->isConfigTexturable(desc.fConfig));
     }
 
     return fContext->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch);
 }
 
 void GrSWMaskHelper::sendTextureData(GrTexture *texture, const GrSurfaceDesc& desc,
-                                     const void *data, int rowbytes) {
+                                     const void *data, size_t rowbytes) {
     // If we aren't reusing scratch textures we don't need to flush before
     // writing since no one else will be using 'texture'
     bool reuseScratch = fContext->getGpu()->caps()->reuseScratchTextures();
 
     // Since we're uploading to it, and it's compressed, 'texture' shouldn't
     // have a render target.
     SkASSERT(NULL == texture->asRenderTarget());
 
     texture->writePixels(0, 0, desc.fWidth, desc.fHeight,
                          desc.fConfig, data, rowbytes,
@@ skipping 105 matching lines @@
     maskMatrix.preConcat(drawState->getViewMatrix());
 
     drawState->addCoverageProcessor(
                          GrSimpleTextureEffect::Create(texture,
                                                        maskMatrix,
                                                        GrTextureParams::kNone_FilterMode,
                                                        kPosition_GrCoordSet))->unref();
 
     target->drawSimpleRect(drawState, color, dstRect);
 }