Reworks Channel pausing behavior

ipc/ipc_mojo_bootstrap.h

Index: ipc/ipc_mojo_bootstrap.h
diff --git a/ipc/ipc_mojo_bootstrap.h b/ipc/ipc_mojo_bootstrap.h
index fb71e8a14a1d4cfa6d7de12acc73d4599e2dd2e6..5188cd0199610c6776d292dc2cfe6e04c76144b1 100644
--- a/ipc/ipc_mojo_bootstrap.h
+++ b/ipc/ipc_mojo_bootstrap.h
@@ -52,8 +52,11 @@ class IPC_EXPORT MojoBootstrap {
   // Start the handshake over the underlying message pipe.
   virtual void Connect() = 0;
 
+  // Stop transmitting messages and start queueing them instead.
+  virtual void Pause() = 0;
+
   // Stop queuing new messages and start transmitting them instead.
-  virtual void Start() = 0;
+  virtual void Unpause() = 0;
 
   // Flush outgoing messages which were queued before Start().
   virtual void Flush() = 0;