Move more files from chrome/browser/nacl_host/ to components/nacl/browser/

chrome/browser/nacl_host/nacl_process_host.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_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
-#define CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
-
-#include "build/build_config.h"
-
-#include "base/files/file_path.h"
-#include "base/files/file_util_proxy.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/process/process.h"
-#include "components/nacl/common/nacl_types.h"
-#include "content/public/browser/browser_child_process_host_delegate.h"
-#include "content/public/browser/browser_child_process_host_iterator.h"
-#include "ipc/ipc_channel_handle.h"
-#include "net/socket/socket_descriptor.h"
-#include "ppapi/shared_impl/ppapi_permissions.h"
-#include "url/gurl.h"
-
-class CommandLine;
-class NaClHostMessageFilter;
-
-namespace content {
-class BrowserChildProcessHost;
-class BrowserPpapiHost;
-}
-
-namespace IPC {
-class ChannelProxy;
-}
-
-namespace nacl {
-void* AllocateAddressSpaceASLR(base::ProcessHandle process, size_t size);
-}
-
-// Represents the browser side of the browser <--> NaCl communication
-// channel. There will be one NaClProcessHost per NaCl process
-// The browser is responsible for starting the NaCl process
-// when requested by the renderer.
-// After that, most of the communication is directly between NaCl plugin
-// running in the renderer and NaCl processes.
-class NaClProcessHost : public content::BrowserChildProcessHostDelegate {
- public:
-  // manifest_url: the URL of the manifest of the Native Client plugin being
-  // executed.
-  // render_view_id: RenderView routing id, to control access to private APIs.
-  // permission_bits: controls which interfaces the NaCl plugin can use.
-  // uses_irt: whether the launched process should use the IRT.
-  // enable_dyncode_syscalls: whether the launched process should allow dyncode
-  //                          and mmap with PROT_EXEC.
-  // enable_exception_handling: whether the launched process should allow
-  //                            hardware exception handling.
-  // enable_crash_throttling: whether a crash of this process contributes
-  //                          to the crash throttling statistics, and also
-  //                          whether this process should not start when too
-  //                          many crashes have been observed.
-  // off_the_record: was the process launched from an incognito renderer?
-  // profile_directory: is the path of current profile directory.
-  NaClProcessHost(const GURL& manifest_url,
-                  int render_view_id,
-                  uint32 permission_bits,
-                  bool uses_irt,
-                  bool enable_dyncode_syscalls,
-                  bool enable_exception_handling,
-                  bool enable_crash_throttling,
-                  bool off_the_record,
-                  const base::FilePath& profile_directory);
-  virtual ~NaClProcessHost();
-
-  virtual void OnProcessCrashed(int exit_status) OVERRIDE;
-
-  // Do any minimal work that must be done at browser startup.
-  static void EarlyStartup();
-
-  // Initialize the new NaCl process. Result is returned by sending ipc
-  // message reply_msg.
-  void Launch(NaClHostMessageFilter* nacl_host_message_filter,
-              IPC::Message* reply_msg,
-              const base::FilePath& manifest_path);
-
-  virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
-
-#if defined(OS_WIN)
-  void OnProcessLaunchedByBroker(base::ProcessHandle handle);
-  void OnDebugExceptionHandlerLaunchedByBroker(bool success);
-#endif
-
-  bool Send(IPC::Message* msg);
-
-  content::BrowserChildProcessHost* process() { return process_.get(); }
-  content::BrowserPpapiHost* browser_ppapi_host() { return ppapi_host_.get(); }
-
- private:
-  friend class PluginListener;
-
-  // Internal class that holds the NaClHandle objecs so that
-  // nacl_process_host.h doesn't include NaCl headers.  Needed since it's
-  // included by src\content, which can't depend on the NaCl gyp file because it
-  // depends on chrome.gyp (circular dependency).
-  struct NaClInternal;
-
-  // PluginListener that forwards any messages from untrusted code that aren't
-  // handled by the PepperMessageFilter to us.
-  class PluginListener : public IPC::Listener {
-   public:
-    explicit PluginListener(NaClProcessHost* host);
-    virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-   private:
-    // Non-owning pointer so we can forward messages to the host.
-    NaClProcessHost* host_;
-  };
-
-  bool LaunchNaClGdb();
-
-#if defined(OS_POSIX)
-  // Create bound TCP socket in the browser process so that the NaCl GDB debug
-  // stub can use it to accept incoming connections even when the Chrome sandbox
-  // is enabled.
-  net::SocketDescriptor GetDebugStubSocketHandle();
-#endif
-  bool LaunchSelLdr();
-
-  // BrowserChildProcessHostDelegate implementation:
-  virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
-  virtual void OnProcessLaunched() OVERRIDE;
-
-  void OnResourcesReady();
-
-  // Enable the PPAPI proxy only for NaCl processes corresponding to a renderer.
-  bool enable_ppapi_proxy() { return render_view_id_ != 0; }
-
-  // Sends the reply message to the renderer who is waiting for the plugin
-  // to load. Returns true on success.
-  bool ReplyToRenderer(const IPC::ChannelHandle& channel_handle);
-
-  // Sends the reply with error message to the renderer.
-  void SendErrorToRenderer(const std::string& error_message);
-
-  // Sends the reply message to the renderer. Either result or
-  // error message must be empty.
-  void SendMessageToRenderer(const nacl::NaClLaunchResult& result,
-                             const std::string& error_message);
-
-  // Sends the message to the NaCl process to load the plugin. Returns true
-  // on success.
-  bool StartNaClExecution();
-
-  // Called once all initialization is complete and the NaCl process is
-  // ready to go. Returns true on success.
-  bool SendStart();
-
-  // Does post-process-launching tasks for starting the NaCl process once
-  // we have a connection.
-  //
-  // Returns false on failure.
-  bool StartWithLaunchedProcess();
-
-  // Message handlers for validation caching.
-  void OnQueryKnownToValidate(const std::string& signature, bool* result);
-  void OnSetKnownToValidate(const std::string& signature);
-  void OnResolveFileToken(uint64 file_token_lo, uint64 file_token_hi,
-                          IPC::Message* reply_msg);
-  void FileResolved(base::PlatformFile* file, const base::FilePath& file_path,
-                    IPC::Message* reply_msg);
-
-#if defined(OS_WIN)
-  // Message handler for Windows hardware exception handling.
-  void OnAttachDebugExceptionHandler(const std::string& info,
-                                     IPC::Message* reply_msg);
-  bool AttachDebugExceptionHandler(const std::string& info,
-                                   IPC::Message* reply_msg);
-#endif
-
-  // Called when a PPAPI IPC channel has been created.
-  void OnPpapiChannelCreated(const IPC::ChannelHandle& channel_handle);
-  // Called by PluginListener, so messages from the untrusted side of
-  // the IPC proxy can be handled.
-  bool OnUntrustedMessageForwarded(const IPC::Message& msg);
-
-  GURL manifest_url_;
-  ppapi::PpapiPermissions permissions_;
-
-#if defined(OS_WIN)
-  // This field becomes true when the broker successfully launched
-  // the NaCl loader.
-  bool process_launched_by_broker_;
-#endif
-  // The NaClHostMessageFilter that requested this NaCl process.  We use
-  // this for sending the reply once the process has started.
-  scoped_refptr<NaClHostMessageFilter> nacl_host_message_filter_;
-
-  // The reply message to send. We must always send this message when the
-  // sub-process either succeeds or fails to unblock the renderer waiting for
-  // the reply. NULL when there is no reply to send.
-  IPC::Message* reply_msg_;
-#if defined(OS_WIN)
-  bool debug_exception_handler_requested_;
-  scoped_ptr<IPC::Message> attach_debug_exception_handler_reply_msg_;
-#endif
-
-  // The file path to the manifest is passed to nacl-gdb when it is used to
-  // debug the NaCl loader.
-  base::FilePath manifest_path_;
-
-  // Socket pairs for the NaCl process and renderer.
-  scoped_ptr<NaClInternal> internal_;
-
-  base::WeakPtrFactory<NaClProcessHost> weak_factory_;
-
-  scoped_ptr<content::BrowserChildProcessHost> process_;
-
-  bool uses_irt_;
-
-  bool enable_debug_stub_;
-  bool enable_dyncode_syscalls_;
-  bool enable_exception_handling_;
-  bool enable_crash_throttling_;
-
-  bool off_the_record_;
-
-  const base::FilePath profile_directory_;
-
-  // Channel proxy to terminate the NaCl-Browser PPAPI channel.
-  scoped_ptr<IPC::ChannelProxy> ipc_proxy_channel_;
-  // Plugin listener, to forward browser channel messages to us.
-  PluginListener ipc_plugin_listener_;
-  // Browser host for plugin process.
-  scoped_ptr<content::BrowserPpapiHost> ppapi_host_;
-
-  int render_view_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
-};
-
-#endif  // CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_