API to Convert Java Bitmap Config to SkBitmap::Config

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 10eb53a3188bfc8700239f1e482b7bd76a375b2e..1b76559d877adf86df869d95d638028a51f8c98f 100644
--- a/ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java
+++ b/ui/android/java/src/org/chromium/ui/gfx/BitmapHelper.java
@@ -16,6 +16,12 @@ import org.chromium.base.JNINamespace;
  */
 @JNINamespace("gfx")
 public class BitmapHelper {
+    private static final int BITMAP_CONFIG_NO_CONFIG = 0;
+    private static final int BITMAP_CONFIG_ALPHA_8 = 1;
+    private static final int BITMAP_CONFIG_ARGB_4444 = 2;
+    private static final int BITMAP_CONFIG_ARGB_8888 = 3;
+    private static final int BITMAP_CONFIG_RGB_565 = 4;
+
     @CalledByNative
     private static Bitmap createBitmap(int width,
                                       int height,
@@ -75,4 +81,26 @@ public class BitmapHelper {
 
         return inSampleSize;
     }
+
+    /**
+     * Provides a matching integer constant for the Bitmap.Config value passed.
+     *
+     * @param Bitmap Configuration value.
+     * @return Matching integer constant for the Bitmap.Config value passed.
+     */
+    @CalledByNative
+    private static int bitmapConfig(Bitmap.Config bitmap_config) {
+        switch (bitmap_config) {
+            case ALPHA_8:
+                return BITMAP_CONFIG_ALPHA_8;
+            case ARGB_4444:
+                return BITMAP_CONFIG_ARGB_4444;
+            case ARGB_8888:
+                return BITMAP_CONFIG_ARGB_8888;
+            case RGB_565:
+                return BITMAP_CONFIG_RGB_565;
+            default:
+                return BITMAP_CONFIG_NO_CONFIG;
+        }
+    }
 }