content/gpu: Set up a mojom connection between browser and gpu.

content/public/common/child_process_host_delegate.h

Index: content/public/common/child_process_host_delegate.h
diff --git a/content/public/common/child_process_host_delegate.h b/content/public/common/child_process_host_delegate.h
index 62fa80e733d5aa4c0f79385bc58ad828ea5bd925..d7bd45140598d6a1c7aabca7cd14aaae336cade0 100644
--- a/content/public/common/child_process_host_delegate.h
+++ b/content/public/common/child_process_host_delegate.h
@@ -11,6 +11,10 @@
 #include "content/common/content_export.h"
 #include "ipc/ipc_listener.h"
 
+namespace IPC {
+class Channel;
+}
+
 namespace service_manager {
 class InterfaceProvider;
 }
@@ -28,6 +32,9 @@ class ChildProcessHostDelegate : public IPC::Listener {
   // it's ok to shutdown, when really it's not.
   CONTENT_EXPORT virtual bool CanShutdown();
 
+  // Called when the IPC channel for the child process is initialized.
+  virtual void OnChannelInitialized(IPC::Channel* channel) {}
+
   // Called when the child process unexpected closes the IPC channel. Delegates
   // would normally delete the object in this case.
   virtual void OnChildDisconnected() {}
@@ -37,8 +44,7 @@ class ChildProcessHostDelegate : public IPC::Listener {
   virtual const base::Process& GetProcess() const = 0;
 
   // Returns the service_manager::InterfaceProvider the process host can use to
-  // bind
-  // interfaces exposed to it from the child.
+  // bind interfaces exposed to it from the child.
   CONTENT_EXPORT virtual service_manager::InterfaceProvider*
   GetRemoteInterfaces();
 };