Auto-formatted all .mojom files.

BUG= #592
R=viettrungluu@chromium.org

Review URL: https://codereview.chromium.org/1741963002 .
diff --git a/mojo/services/gfx/composition/interfaces/nodes.mojom b/mojo/services/gfx/composition/interfaces/nodes.mojom
index 19e2430..c2326ce 100644
--- a/mojo/services/gfx/composition/interfaces/nodes.mojom
+++ b/mojo/services/gfx/composition/interfaces/nodes.mojom
@@ -251,7 +251,7 @@
   // The version of the scene that we would like to reference.
   // Use |kSceneVersionNone| to request the most recently published
   // version of the scene if synchronization is unimportant.
-  uint32 scene_version = 0; // kSceneVersionNone
+  uint32 scene_version = 0;  // kSceneVersionNone
 };
 
 // Draws a layer.