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

ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java

Index: ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java
diff --git a/ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java b/ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java
index 7ad6e921cb59181a7daa4cd39986a9e260947450..d921efa9dc56ec5f3b29bf79dd1bbde373bc1837 100644
--- a/ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java
+++ b/ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java
@@ -44,7 +44,7 @@ public class BitmapHelper {
         }
     }
 
-     /**
+    /**
      * Provides a matching Bitmap.Config for the enum config value passed.
      *
      * @param bitmapFormatValue The Bitmap Configuration enum value.
@@ -64,4 +64,8 @@ public class BitmapHelper {
         }
     }
 
+    @CalledByNative
+    private static int getByteCount(Bitmap bitmap) {
+        return bitmap.getByteCount();
+    }
 }