arc: Support more types of notifications.

components/arc/common/bitmap.mojom

Index: components/arc/common/bitmap.mojom
diff --git a/tools/clang/rewrite_to_chrome_style/tests/gen/thing.h b/components/arc/common/bitmap.mojom
similarity index 60%
copy from tools/clang/rewrite_to_chrome_style/tests/gen/thing.h
copy to components/arc/common/bitmap.mojom
index 900b65c4cc4d0a285729491e4d03ed6f3a52b0f3..b1c04326b71801994b05b373aa1d6219d69e7124 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/gen/thing.h
+++ b/components/arc/common/bitmap.mojom
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-namespace blink {
-void genThing();
+module arc;
 
-class GenClass {
-  virtual void genMethod() {}
+struct ArcBitmap {
+  uint32 width;
+  uint32 height;
+  array<uint8> pixel_data;  // Must be ARGB_8888
 };
-}