API to Convert Java Bitmap Config to SkBitmap::Config

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

 // Copyright 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.
 
 package org.chromium.ui.gfx;
 
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 
@@ skipping 57 matching lines @@
             final int widthRatio = Math.round((float) width / (float) reqWidth);
 
             // Choose the smallest ratio as inSampleSize value, this will guarantee
             // a final image with both dimensions larger than or equal to the
             // requested height and width.
             inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
         }
 
         return inSampleSize;
     }
+
+    /**
+     * Provides a matching integer constant for the Bitmap.Config value passed.
+     *
+     * @param bitmapConfig The Bitmap Configuration value.
+     * @return Matching integer constant for the Bitmap.Config value passed.
+     */
+    @CalledByNative
+    private static int bitmapConfig(Bitmap.Config bitmapConfig) {
+        switch (bitmapConfig) {
+            case ALPHA_8:
+                return BitmapFormat.FORMAT_ALPHA_8;
+            case ARGB_4444:
+                return BitmapFormat.FORMAT_ARGB_4444;
+            case ARGB_8888:
+                return BitmapFormat.FORMAT_ARGB_8888;
+            case RGB_565:
+                return BitmapFormat.FORMAT_RGB_565;
+            default:
+                return BitmapFormat.FORMAT_NO_CONFIG;
+        }
+    }
 }