Check whether Java bitmap memory size is same to one of SkBitmap

ui/gfx/android/java_bitmap.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/android/java_bitmap.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/jni_string.h"
 #include "base/logging.h"
@@ skipping 11 matching lines @@
   int err = AndroidBitmap_lockPixels(AttachCurrentThread(), bitmap_, &pixels_);
   DCHECK(!err);
   DCHECK(pixels_);
 
   AndroidBitmapInfo info;
   err = AndroidBitmap_getInfo(AttachCurrentThread(), bitmap_, &info);
   DCHECK(!err);
   size_ = gfx::Size(info.width, info.height);
   format_ = info.format;
   stride_ = info.stride;
+  byte_count_ = Java_BitmapHelper_getByteCount(AttachCurrentThread(), bitmap_);
 }
 
 JavaBitmap::~JavaBitmap() {
   int err = AndroidBitmap_unlockPixels(AttachCurrentThread(), bitmap_);
   DCHECK(!err);
 }
 
 // static
 bool JavaBitmap::RegisterJavaBitmap(JNIEnv* env) {
   return RegisterNativesImpl(env);
@@ skipping 59 matching lines @@
       break;
     case ANDROID_BITMAP_FORMAT_A_8:
       skbitmap.allocPixels(SkImageInfo::MakeA8(src_size.width(),
                                                src_size.height()),
                            jbitmap.stride());
       break;
     default:
       CHECK(false) << "Invalid Java bitmap format: " << jbitmap.format();
       break;
   }
+  CHECK_EQ(jbitmap.byte_count(), (int) skbitmap.getSize());

[jdduke (slow), 2015/05/11 22:14:49]

nit: static_cast<int>

[Jaekyun Seok (inactive), 2015/05/11 23:07:24]

Done.

   const void* src_pixels = jbitmap.pixels();
   void* dst_pixels = skbitmap.getPixels();
   memcpy(dst_pixels, src_pixels, skbitmap.getSize());
 
   return skbitmap;
 }
 
 SkColorType ConvertToSkiaColorType(jobject bitmap_config) {
   int jbitmap_config = Java_BitmapHelper_getBitmapFormatForConfig(
       AttachCurrentThread(), bitmap_config);
   switch (jbitmap_config) {
     case BITMAP_FORMAT_ALPHA_8:
       return kAlpha_8_SkColorType;
     case BITMAP_FORMAT_ARGB_4444:
       return kARGB_4444_SkColorType;
     case BITMAP_FORMAT_ARGB_8888:
       return kN32_SkColorType;
     case BITMAP_FORMAT_RGB_565:
       return kRGB_565_SkColorType;
     case BITMAP_FORMAT_NO_CONFIG:
     default:
       return kUnknown_SkColorType;
   }
 }
 
 }  //  namespace gfx