More Windows 64b compilation warning fixes

src/gpu/gl/GrGpuGL_program.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 "GrGpuGL.h"
 
 #include "GrEffect.h"
@@ skipping 273 matching lines @@
     }
     // This must come after textures are flushed because a texture may need
     // to be msaa-resolved (which will modify bound FBO state).
     this->flushRenderTarget(devRect);
 
     return true;
 }
 
 void GrGpuGL::setupGeometry(const DrawInfo& info, size_t* indexOffsetInBytes) {
 
-    GrGLsizei stride = this->getDrawState().getVertexSize();
+    GrGLsizei stride = static_cast<GrGLsizei>(this->getDrawState().getVertexSize());
 
     size_t vertexOffsetInBytes = stride * info.startVertex();
 
     const GeometryPoolState& geoPoolState = this->getGeomPoolState();
 
     GrGLVertexBuffer* vbuf;
     switch (this->getGeomSrc().fVertexSrc) {
         case kBuffer_GeometrySrcType:
             vbuf = (GrGLVertexBuffer*) this->getGeomSrc().fVertexBuffer;
             break;
@@ skipping 69 matching lines @@
                              GrGLAttribTypeToLayout(attribType).fType,
                              GrGLAttribTypeToLayout(attribType).fNormalized,
                              stride,
                              reinterpret_cast<GrGLvoid*>(
                              vertexOffsetInBytes + vertexAttrib->fOffset));
         }
 
         attribState->disableUnusedArrays(this, usedAttribArraysMask, false);
     }
 }