API to Convert Java Bitmap Config to SkBitmap::Config

ui/gfx/android/java_bitmap.h

Index: ui/gfx/android/java_bitmap.h
diff --git a/ui/gfx/android/java_bitmap.h b/ui/gfx/android/java_bitmap.h
index 9d1e4432cb7dcafaed425e7b20159b82875f3b31..cb1077d73e2ca49f6c8af26c8a107bda67398d6c 100644
--- a/ui/gfx/android/java_bitmap.h
+++ b/ui/gfx/android/java_bitmap.h
@@ -8,12 +8,20 @@
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/size.h"
 
-class SkBitmap;
-
 namespace gfx {
 
+// Define Bitmap Config values like BITMAP_CONFIG_ARGB_8888 in a
+// way that ensures they're always the same than their Java counterpart.
+
+enum BitmapConfig {
+#define DEFINE_BITMAP_CONFIG(x, y) BITMAP_##x = y,
+#include "bitmap_config_list.h"
+#undef DEFINE_BITMAP_CONFIG
+};
+
 // This class wraps a JNI AndroidBitmap object to make it easier to use. It
 // handles locking and unlocking of the underlying pixels, along with wrapping
 // various JNI methods.
@@ -51,6 +59,9 @@ GFX_EXPORT SkBitmap CreateSkBitmapFromJavaBitmap(JavaBitmap& jbitmap);
 GFX_EXPORT SkBitmap CreateSkBitmapFromResource(const char* name,
                                                gfx::Size size);
 
+// Returns a Skia config value for the requested input java Bitmap.Config.
+GFX_EXPORT SkBitmap::Config ConvertToSkiaConfig(jobject bitmap_config);
+
 }  // namespace gfx
 
 #endif  // UI_GFX_ANDROID_JAVA_BITMAP_H_