fix more 64bit warnings

src/core/SkPictureFlat.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkPictureFlat_DEFINED
 #define SkPictureFlat_DEFINED
 
@@ skipping 254 matching lines @@
         // A buffer of 256 bytes should fit most paints, regions, and matrices.
         uint32_t storage[64];
         SkOrderedWriteBuffer buffer(storage, sizeof(storage));
 
         buffer.setBitmapHeap(controller->getBitmapHeap());
         buffer.setTypefaceRecorder(controller->getTypefaceSet());
         buffer.setNamedFactoryRecorder(controller->getNamedFactorySet());
         buffer.setFlags(controller->getWriteBufferFlags());
 
         Traits::flatten(buffer, obj);
-        uint32_t size = buffer.size();
+        size_t size = buffer.size();
         SkASSERT(SkIsAlign4(size));
 
         // Allocate enough memory to hold SkFlatData struct and the flat data itself.
         size_t allocSize = sizeof(SkFlatData) + size;
         SkFlatData* result = (SkFlatData*) controller->allocThrow(allocSize);
 
         // Put the serialized contents into the data section of the new allocation.
         buffer.writeToMemory(result->data());
         // Stamp the index, size and checksum in the header.
-        result->stampHeader(index, size);
+        result->stampHeader(index, SkToS32(size));
         return result;
     }
 
     // Unflatten this into result, using bitmapHeap and facePlayback for bitmaps and fonts if given
     template <typename Traits, typename T>
     void unflatten(T* result,
                    SkBitmapHeap* bitmapHeap = NULL,
                    SkTypefacePlayback* facePlayback = NULL) const {
         SkOrderedReadBuffer buffer(this->data(), fFlatSize);
 
@@ skipping 311 matching lines @@
     }
 
 private:
     SkChunkAlloc               fHeap;
     SkAutoTUnref<SkRefCntSet>  fTypefaceSet;
     void*                      fLastAllocated;
     mutable SkTypefacePlayback fTypefacePlayback;
 };
 
 #endif