Embed a simple Mojo shell in content

chrome/utility/chrome_content_utility_client.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
 #define CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "content/public/utility/content_utility_client.h"
 #include "ipc/ipc_platform_file.h"
+#include "mojo/common/weak_binding_set.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
 
 namespace base {
 class FilePath;
 struct FileDescriptor;
 }
 
+namespace content {
+class Process;
+}
+
 class UtilityMessageHandler;
 
 class ChromeContentUtilityClient : public content::ContentUtilityClient {
  public:
   ChromeContentUtilityClient();
   ~ChromeContentUtilityClient() override;
 
   void UtilityThreadStarted() override;
   bool OnMessageReceived(const IPC::Message& message) override;
   void RegisterMojoServices(content::ServiceRegistry* registry) override;
@@ skipping 42 matching lines @@
   void OnAnalyzeZipFileForDownloadProtection(
       const IPC::PlatformFileForTransit& zip_file,
       const IPC::PlatformFileForTransit& temp_file);
 #endif
 #if defined(ENABLE_EXTENSIONS)
   void OnParseMediaMetadata(const std::string& mime_type,
                             int64 total_size,
                             bool get_attached_images);
 #endif
 
+  void BindProcessRequest(mojo::InterfaceRequest<content::Process> request);
+
   typedef ScopedVector<UtilityMessageHandler> Handlers;
   Handlers handlers_;
 
   // Flag to enable whitelisting.
   bool filter_messages_;
   // A list of message_ids to filter.
   std::set<int> message_id_whitelist_;
   // Maximum IPC msg size (default to kMaximumMessageSize; override for testing)
   static int64_t max_ipc_message_size_;
 
+  // Mojo child process implementation.
+  scoped_ptr<content::Process> process_impl_;
+  // Bindings to the Process impl.
+  mojo::WeakBindingSet<content::Process> process_bindings_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeContentUtilityClient);
 };
 
 #endif  // CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_