Convert Gamepad IPC messages into mojo interface.

content/browser/gamepad/gamepad_service.h

Index: content/browser/gamepad/gamepad_service.h
diff --git a/content/browser/gamepad/gamepad_service.h b/content/browser/gamepad/gamepad_service.h
index b32b42d93030512d76baf16a086a2c8f0f327b46..3ca56ef35eb0b571caeff356699c1b66c937e4de 100644
--- a/content/browser/gamepad/gamepad_service.h
+++ b/content/browser/gamepad/gamepad_service.h
@@ -15,6 +15,7 @@
 #include "base/threading/thread_checker.h"
 #include "content/common/content_export.h"
 #include "device/gamepad/gamepad_provider.h"
+#include "mojo/public/cpp/system/buffer.h"
 
 namespace blink {
 class WebGamepad;
@@ -74,6 +75,9 @@ class CONTENT_EXPORT GamepadService
   base::SharedMemoryHandle GetSharedMemoryHandleForProcess(
       base::ProcessHandle handle);
 
+  // Returns the mojo::ScopedSharedBuffer handle of the gamepad data.

[blundell, 2016/12/06 12:26:50]

nit: s/Returns the/Returns a new

[ke.he, 2016/12/07 08:05:10]

Done.

+  mojo::ScopedSharedBufferHandle GetSharedBufferHandle();
+
   // Stop/join with the background thread in GamepadProvider |provider_|.
   void Terminate();