gpu: Replace more chrome ipc with mojom API.

services/ui/gpu/interfaces/gpu_service.mojom

Index: services/ui/gpu/interfaces/gpu_service.mojom
diff --git a/services/ui/gpu/interfaces/gpu_service.mojom b/services/ui/gpu/interfaces/gpu_service.mojom
index 46d3dc6d0cd4b3d2a0029c79ea01f79ef2d8b903..b194445f8fa2a90e8b1d5afc040ec20f702f7d1d 100644
--- a/services/ui/gpu/interfaces/gpu_service.mojom
+++ b/services/ui/gpu/interfaces/gpu_service.mojom
@@ -47,4 +47,11 @@ interface GpuService {
 
   // Tells GPU to wake up the GPU because we're about to draw.
   WakeUpGpu();
+
+  // Tells GPU to destroy all channels.
+  DestroyAllChannels();
+
+  Crash();

[Fady Samuel, 2017/03/01 20:10:58]

nit: comment on what this does?

+  Hang();

[Fady Samuel, 2017/03/01 20:10:58]

nit: comment on what this does?

+  ThrowJavaException();

[Fady Samuel, 2017/03/01 20:10:58]

nit: comment on what this does?

[sadrul, 2017/03/01 20:11:56]

These should be obvious/unambiguous from the names?

[Fady Samuel, 2017/03/01 20:14:42]

Fair enough, although it could be argued "DestroyAllChannels" is also obvious
but it has a comment. I guess it would be nice to have a comment for consistency
but I (as a non-OWNER) don't feel too strongly about it.

[sadrul, 2017/03/01 20:18:30]

I agree that DestroyAllChannels() doesn't need the comment either. My preference
would be to remove that comment.

 };