New C++ -> Java enum build rule + parser/generator.

ui/gfx/android/java_bitmap.h

 // 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.
 
 #ifndef UI_GFX_ANDROID_JAVA_BITMAP_H_
 #define UI_GFX_ANDROID_JAVA_BITMAP_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/size.h"
 
 namespace gfx {
 
 // Define Bitmap Config values like BITMAP_CONFIG_ARGB_8888 in a

[Sami, 2014/09/03 19:04:59]

nit: Update the example in the comment. Or maybe this part of the comment is
redundant now.

[mkosiba (inactive), 2014/09/04 11:31:22]

ok, I assumed the comment meant these are supposed to match the
android.graphics.Bitmap.Config values but that's not the case (we have functions
to convert from one to the other) so it's probably just a stale comment from the
times we didn't have any auto-generators.

-// 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
+// way that ensures they're always the same as their Java counterpart.
+//
+// A Java counterpart will be generated for this enum.
+// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.ui.gfx
+enum BitmapFormat {
+  BITMAP_FORMAT_NO_CONFIG,
+  BITMAP_FORMAT_ALPHA_8,
+  BITMAP_FORMAT_ARGB_4444,
+  BITMAP_FORMAT_ARGB_8888,
+  BITMAP_FORMAT_RGB_565,
 };
 
 // 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.
 class GFX_EXPORT JavaBitmap {
  public:
   explicit JavaBitmap(jobject bitmap);
   ~JavaBitmap();
 
@@ skipping 40 matching lines @@
 // Converts |bitmap| to an SkBitmap of the same size and format.
 // Note: |jbitmap| is assumed to be non-null, non-empty and of format RGBA_8888.
 GFX_EXPORT SkBitmap CreateSkBitmapFromJavaBitmap(const JavaBitmap& jbitmap);
 
 // Returns a Skia color type value for the requested input java Bitmap.Config.
 GFX_EXPORT SkColorType ConvertToSkiaColorType(jobject jbitmap_config);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_ANDROID_JAVA_BITMAP_H_