Lock pixels again after dummy reset of pixel ref in SkBitmapRegionCodec

tools/android/SkBitmapRegionCodec.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAndroidCodec.h"
 #include "SkBitmapRegionCodec.h"
 #include "SkBitmapRegionDecoderPriv.h"
@@ skipping 111 matching lines @@
     options.fZeroInitialized = zeroInit;
     void* dst = bitmap->getAddr(scaledOutX, scaledOutY);
 
     // FIXME: skbug.com/4538
     // It is important that we use the rowBytes on the pixelRef.  They may not be
     // set properly on the bitmap.
     SkPixelRef* pr = SkRef(bitmap->pixelRef());
     size_t rowBytes = pr->rowBytes();
     bitmap->setInfo(outInfo, rowBytes);
     bitmap->setPixelRef(pr)->unref();
+    bitmap->lockPixels();
     SkCodec::Result result = fCodec->getAndroidPixels(decodeInfo, dst, rowBytes, &options);
     if (SkCodec::kSuccess != result && SkCodec::kIncompleteInput != result) {
         SkCodecPrintf("Error: Could not get pixels.\n");
         return false;
     }
 
     return true;
 }
 
 bool SkBitmapRegionCodec::conversionSupported(SkColorType colorType) {
     // FIXME: Call virtual function when it lands.
     SkImageInfo info = SkImageInfo::Make(0, 0, colorType, fCodec->getInfo().alphaType(),
             fCodec->getInfo().profileType());
     return conversion_possible(info, fCodec->getInfo());
 }