Mojo C++ bindings: Generate InterfaceHandle<> instead of InterfacePtr<>.

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

 // Copyright 2013 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 <utility>
+
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/test_support/test_utils.h"
 #include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/public/interfaces/bindings/tests/sample_factory.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace test {
@@ skipping 67 matching lines @@
       CreateMessagePipe(nullptr, &pipe0, &pipe1_);
       EXPECT_TRUE(WriteTextMessage(pipe1_.get(), text2));
     }
 
     sample::ResponsePtr response(sample::Response::New());
     response->x = 2;
     response->pipe = pipe0.Pass();
     callback.Run(response.Pass(), text1);
 
     if (request->obj)
-      request->obj->DoSomething();
+      imported::ImportedInterfacePtr::Create(std::move(request->obj))
+          ->DoSomething();
   }
 
   void DoStuff2(ScopedDataPipeConsumerHandle pipe,
                 const DoStuff2Callback& callback) override {
     // Read the data from the pipe, writing the response (as a string) to
     // DidStuff2().
     ASSERT_TRUE(pipe.is_valid());
     uint32_t data_size = 0;
     ASSERT_EQ(MOJO_RESULT_OK,
               ReadDataRaw(
@@ skipping 16 matching lines @@
   }
 
   // These aren't called or implemented, but exist here to test that the
   // methods are generated with the correct argument types for imported
   // interfaces.
   void RequestImportedInterface(
       InterfaceRequest<imported::ImportedInterface> imported,
       const mojo::Callback<void(InterfaceRequest<imported::ImportedInterface>)>&
           callback) override {}
   void TakeImportedInterface(
-      imported::ImportedInterfacePtr imported,
-      const mojo::Callback<void(imported::ImportedInterfacePtr)>& callback)
-      override {}
+      InterfaceHandle<imported::ImportedInterface> imported,
+      const mojo::Callback<void(InterfaceHandle<imported::ImportedInterface>)>&
+          callback) override {}
 
  private:
   ScopedMessagePipeHandle pipe1_;
   Binding<sample::Factory> binding_;
 };
 
 class HandlePassingTest : public testing::Test {
  public:
   void TearDown() override { PumpMessages(); }
 
@@ skipping 201 matching lines @@
 
   PumpMessages();  // Yield for results.
 
   EXPECT_EQ(std::string("object1"), name1);
   EXPECT_EQ(std::string("object2"), name2);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo