mojo: Make InterfacePtr<> testable in if() statements without .get().

mojo/spy/spy.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/spy/spy.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 221 matching lines @@
   }
 
  private:
   virtual mojo::ServiceProviderPtr OnConnectToClient(
     const GURL& url, mojo::ServiceProviderPtr real_client) OVERRIDE {
       if (!MustIntercept(url))
         return real_client.Pass();
 
       // You can get an invalid handle if the app (or service) is
       // created by unconventional means, for example the command line.
-      if (!real_client.get())
+      if (!real_client)
         return real_client.Pass();
 
       mojo::ScopedMessagePipeHandle faux_client;
       mojo::ScopedMessagePipeHandle interceptor;
       CreateMessagePipe(NULL, &faux_client, &interceptor);
 
       scoped_refptr<MessageProcessor> processor = new MessageProcessor(
           control_loop_proxy_);
       mojo::ScopedMessagePipeHandle real_handle = real_client.PassMessagePipe();
       base::WorkerPool::PostTask(
@@ skipping 75 matching lines @@
   service_manager->SetInterceptor(new SpyInterceptor(
       spy_server_, control_thread_->message_loop_proxy()));
 }
 
 Spy::~Spy() {
   // TODO(cpu): Do not leak the interceptor. Lifetime between the
   // service_manager and the spy is still unclear hence the leak.
 }
 
 }  // namespace mojo