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..69bd9d4afcc36b629993adf6e5d6f69570de1043 100644
--- a/services/ui/gpu/interfaces/gpu_service.mojom
+++ b/services/ui/gpu/interfaces/gpu_service.mojom
@@ -47,4 +47,10 @@ interface GpuService {
 
   // Tells GPU to wake up the GPU because we're about to draw.
   WakeUpGpu();
+
+  DestroyAllChannels();
+
+  Crash();
+  Hang();
+  ThrowJavaException();
 };