Mojo C++ bindings: add a new mode to generator to use native STL/WTF types

mojo/public/cpp/bindings/tests/e2e_perftest.cc

 // Copyright 2016 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 <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 10 matching lines @@
 namespace mojo {
 namespace {
 
 class EchoServiceImpl : public test::EchoService {
  public:
   EchoServiceImpl(InterfaceRequest<EchoService> request,
                   const base::Closure& quit_closure);
   ~EchoServiceImpl() override;
 
   // |EchoService| methods:
-  void Echo(const mojo::String& test_data,
+  void Echo(const std::string& test_data,
             const EchoCallback& callback) override;
 
  private:
   const StrongBinding<EchoService> binding_;
   const base::Closure quit_closure_;
 };
 
 EchoServiceImpl::EchoServiceImpl(InterfaceRequest<EchoService> request,
                                  const base::Closure& quit_closure)
     : binding_(this, std::move(request)), quit_closure_(quit_closure) {}
 
 EchoServiceImpl::~EchoServiceImpl() {
   quit_closure_.Run();
 }
 
-void EchoServiceImpl::Echo(const mojo::String& test_data,
+void EchoServiceImpl::Echo(const std::string& test_data,
                            const EchoCallback& callback) {
   callback.Run(test_data);
 }
 
 class PingPongTest {
  public:
   explicit PingPongTest(test::EchoServicePtr service);
 
   void RunTest(int iterations, int batch_size, int message_size);
 
  private:
   void DoPing();
-  void OnPingDone(mojo::String reply);
+  void OnPingDone(const std::string& reply);
 
   test::EchoServicePtr service_;
-  const base::Callback<void(mojo::String)> ping_done_callback_;
+  const base::Callback<void(const std::string&)> ping_done_callback_;
 
   int iterations_;
   int batch_size_;
   std::string message_;
 
   int current_iterations_;
   int calls_outstanding_;
 
   base::Closure quit_closure_;
 };
@@ skipping 25 matching lines @@
     quit_closure_.Run();
     return;
   }
 
   calls_outstanding_ = batch_size_;
   for (int i = 0; i < batch_size_; i++) {
     service_->Echo(message_, ping_done_callback_);
   }
 }
 
-void PingPongTest::OnPingDone(mojo::String reply) {
+void PingPongTest::OnPingDone(const std::string& reply) {
   DCHECK_GT(calls_outstanding_, 0);
   calls_outstanding_--;
 
   if (!calls_outstanding_)
     DoPing();
 }
 
 class MojoE2EPerftest : public edk::test::MojoTestBase {
  public:
   void RunTestOnTaskRunner(base::TaskRunner* runner,
@@ skipping 77 matching lines @@
     MojoHandle client_mp, service_mp;
     CreateMessagePipe(&client_mp, &service_mp);
     WriteMessageWithHandles(mp, "hello", &service_mp, 1);
     RunTestOnTaskRunner(edk::test::GetIoTaskRunner(), client_mp,
                         "MultiProcessEchoIoThread");
   END_CHILD()
 }
 
 }  // namespace
 }  // namespace mojo