cc: Remove the capability to give up and leave compositing mode.

mojo/examples/compositor_app/compositor_host.cc

Index: mojo/examples/compositor_app/compositor_host.cc
diff --git a/mojo/examples/compositor_app/compositor_host.cc b/mojo/examples/compositor_app/compositor_host.cc
index 5a8877bdad768fa5c12d5c09be8b44e2794b4829..87534ed14afb5d973342bb381625e2d1f5dda38b 100644
--- a/mojo/examples/compositor_app/compositor_host.cc
+++ b/mojo/examples/compositor_app/compositor_host.cc
@@ -76,7 +76,8 @@ scoped_ptr<cc::OutputSurface> CompositorHost::CreateOutputSurface(
       new cc::OutputSurface(new MojoContextProvider(gl_pipe_.Pass())));
 }
 
-void CompositorHost::DidInitializeOutputSurface(bool success) {}
+void CompositorHost::DidInitializeOutputSurface() {
+}
 
 void CompositorHost::WillCommit() {}
 void CompositorHost::DidCommit() {}