Added support of Secure Attention Sequence in multiprocess mode.

remoting/host/desktop_session_agent_win.cc

 // 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.
 
 #include "remoting/host/desktop_session_agent.h"
 
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "base/win/scoped_handle.h"
 #include "base/win/win_util.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "remoting/base/auto_thread_task_runner.h"
+#include "remoting/host/event_executor.h"
 #include "remoting/host/win/launch_process_with_token.h"
+#include "remoting/host/win/session_event_executor.h"
 
 using base::win::ScopedHandle;
 
 namespace remoting {
 
 // Provides screen/audio capturing and input injection services for
 // the network process.
 class DesktopSessionAgentWin : public DesktopSessionAgent {
  public:
   DesktopSessionAgentWin(
       scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
       scoped_refptr<AutoThreadTaskRunner> input_task_runner,
       scoped_refptr<AutoThreadTaskRunner> io_task_runner,
       scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner);
 
  protected:
   virtual ~DesktopSessionAgentWin();
 
   virtual bool CreateChannelForNetworkProcess(
       IPC::PlatformFileForTransit* client_out,
       scoped_ptr<IPC::ChannelProxy>* server_out) OVERRIDE;
+  virtual scoped_ptr<EventExecutor> CreateEventExecutor() OVERRIDE;
+
+  // Requests the daemon to inject Secure Attention Sequence into the current
+  // session.
+  void InjectSas();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DesktopSessionAgentWin);
 };
 
 DesktopSessionAgentWin::DesktopSessionAgentWin(
     scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
     scoped_refptr<AutoThreadTaskRunner> input_task_runner,
     scoped_refptr<AutoThreadTaskRunner> io_task_runner,
     scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner)
@@ skipping 32 matching lines @@
   if (!CreateConnectedIpcChannel(channel_name, security_descriptor,
                                  io_task_runner(), this, &client, &server)) {
     return false;
   }
 
   *client_out = client.Take();
   *server_out = server.Pass();
   return true;
 }
 
+scoped_ptr<EventExecutor> DesktopSessionAgentWin::CreateEventExecutor() {
+  DCHECK(caller_task_runner()->BelongsToCurrentThread());
+
+  scoped_ptr<EventExecutor> event_executor =
+      EventExecutor::Create(input_task_runner(), caller_task_runner());
+  event_executor.reset(new SessionEventExecutorWin(
+      input_task_runner(), event_executor.Pass(), caller_task_runner(),
+      base::Bind(&DesktopSessionAgentWin::InjectSas, this)));
+  return event_executor.Pass();
+}
+
+void DesktopSessionAgentWin::InjectSas() {
+  DCHECK(caller_task_runner()->BelongsToCurrentThread());
+
+  if (delegate()) {
+    delegate()->InjectSas();
+  }

[Jamie, 2012/12/06 21:42:25]

Should there be an error log if there's no delegate?

[alexeypa (please no reviews), 2012/12/06 21:56:02]

Nope, this case happen when shutting down DesktopSessionAgent instance.

+}
+
 // static
 scoped_refptr<DesktopSessionAgent> DesktopSessionAgent::Create(
     scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
     scoped_refptr<AutoThreadTaskRunner> input_task_runner,
     scoped_refptr<AutoThreadTaskRunner> io_task_runner,
     scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner) {
   return scoped_refptr<DesktopSessionAgent>(new DesktopSessionAgentWin(
       caller_task_runner, input_task_runner, io_task_runner,
       video_capture_task_runner));
 }
 
 }  // namespace remoting