NaCl: Move src/trusted/plugin/ to components/nacl/renderer/plugin/

ppapi/native_client/src/trusted/plugin/plugin.h

-// -*- c++ -*-
-// 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.
-
-// The portable representation of an instance and root scriptable object.
-// The PPAPI version of the plugin instantiates a subclass of this class.
-
-#ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_
-#define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_
-
-#include <stdio.h>
-
-#include <string>
-
-#include "native_client/src/include/nacl_macros.h"
-#include "native_client/src/include/nacl_scoped_ptr.h"
-
-#include "ppapi/c/private/ppb_nacl_private.h"
-#include "ppapi/cpp/instance.h"
-#include "ppapi/cpp/private/uma_private.h"
-#include "ppapi/cpp/url_loader.h"
-#include "ppapi/cpp/var.h"
-#include "ppapi/cpp/view.h"
-
-#include "ppapi/native_client/src/trusted/plugin/nacl_subprocess.h"
-#include "ppapi/native_client/src/trusted/plugin/pnacl_coordinator.h"
-#include "ppapi/native_client/src/trusted/plugin/service_runtime.h"
-#include "ppapi/native_client/src/trusted/plugin/utility.h"
-
-#include "ppapi/utility/completion_callback_factory.h"
-
-namespace nacl {
-class DescWrapper;
-class DescWrapperFactory;
-}  // namespace nacl
-
-namespace pp {
-class CompletionCallback;
-class URLLoader;
-class URLUtil_Dev;
-}
-
-namespace plugin {
-
-class ErrorInfo;
-class Manifest;
-
-int32_t ConvertFileDescriptor(PP_FileHandle handle);
-
-const PP_NaClFileInfo kInvalidNaClFileInfo = {
-  PP_kInvalidFileHandle,
-  0,  // token_lo
-  0,  // token_hi
-};
-
-class Plugin : public pp::Instance {
- public:
-  explicit Plugin(PP_Instance instance);
-
-  // ----- Methods inherited from pp::Instance:
-
-  // Initializes this plugin with <embed/object ...> tag attribute count |argc|,
-  // names |argn| and values |argn|. Returns false on failure.
-  // Gets called by the browser right after New().
-  bool Init(uint32_t argc, const char* argn[], const char* argv[]) override;
-
-  // Handles document load, when the plugin is a MIME type handler.
-  bool HandleDocumentLoad(const pp::URLLoader& url_loader) override;
-
-  // Load support.
-  //
-  // Starts NaCl module but does not wait until low-level
-  // initialization (e.g. ld.so dynamic loading of manifest files) is
-  // done.  The module will become ready later, asynchronously.  Other
-  // event handlers should block until the module is ready before
-  // trying to communicate with it, i.e., until nacl_ready_state is
-  // DONE.
-  //
-  // NB: currently we do not time out, so if the untrusted code
-  // does not signal that it is ready, then we will deadlock the main
-  // thread of the renderer on this subsequent event delivery.  We
-  // should include a time-out at which point we declare the
-  // nacl_ready_state to be done, and let the normal crash detection
-  // mechanism(s) take over.
-  void LoadNaClModule(PP_NaClFileInfo file_info,
-                      bool uses_nonsfi_mode,
-                      PP_NaClAppProcessType process_type);
-
-  // Load support.
-  // A helper SRPC NaCl module can be loaded given a PP_NaClFileInfo.
-  // Blocks until the helper module signals initialization is done.
-  // Does not update nacl_module_origin().
-  // Returns NULL or the NaClSubprocess of the new helper NaCl module.
-  NaClSubprocess* LoadHelperNaClModule(const std::string& helper_url,
-                                       PP_NaClFileInfo file_info,
-                                       ErrorInfo* error_info);
-
-  // Report an error that was encountered while loading a module.
-  void ReportLoadError(const ErrorInfo& error_info);
-
-  nacl::DescWrapperFactory* wrapper_factory() const { return wrapper_factory_; }
-
-  const PPB_NaCl_Private* nacl_interface() const { return nacl_interface_; }
-  pp::UMAPrivate& uma_interface() { return uma_interface_; }
-
- private:
-  NACL_DISALLOW_COPY_AND_ASSIGN(Plugin);
-  // The browser will invoke the destructor via the pp::Instance
-  // pointer to this object, not from base's Delete().
-  ~Plugin() override;
-
-  // Shuts down socket connection, service runtime, and receive thread,
-  // in this order, for the main nacl subprocess.
-  void ShutDownSubprocesses();
-
-  // Histogram helper functions, internal to Plugin so they can use
-  // uma_interface_ normally.
-  void HistogramTimeSmall(const std::string& name, int64_t ms);
-
-  // Loads and starts a helper (e.g. llc, ld) NaCl module.
-  // Only to be used from a background (non-main) thread for the PNaCl
-  // translator. This will fully initialize the |subprocess| if the load was
-  // successful.
-  bool LoadHelperNaClModuleInternal(NaClSubprocess* subprocess,
-                                    const SelLdrStartParams& params);
-
-  // Start sel_ldr from the main thread, given the start params.
-  // |pp_error| is set by CallOnMainThread (should be PP_OK).
-  void StartSelLdrOnMainThread(int32_t pp_error,
-                               ServiceRuntime* service_runtime,
-                               const SelLdrStartParams& params,
-                               pp::CompletionCallback callback);
-
-  // Signals that StartSelLdr has finished.
-  // This is invoked on the main thread.
-  void SignalStartSelLdrDone(int32_t pp_error,
-                             bool* started,
-                             ServiceRuntime* service_runtime);
-
-  // This is invoked on the main thread.
-  void StartNexe(int32_t pp_error, ServiceRuntime* service_runtime);
-
-  // Callback used when getting the URL for the .nexe file.  If the URL loading
-  // is successful, the file descriptor is opened and can be passed to sel_ldr
-  // with the sandbox on.
-  void NexeFileDidOpen(int32_t pp_error);
-
-  // Callback used when a .nexe is translated from bitcode.  If the translation
-  // is successful, the file descriptor is opened and can be passed to sel_ldr
-  // with the sandbox on.
-  void BitcodeDidTranslate(int32_t pp_error);
-
-  // NaCl ISA selection manifest file support.  The manifest file is specified
-  // using the "nacl" attribute in the <embed> tag.  First, the manifest URL (or
-  // data: URI) is fetched, then the JSON is parsed.  Once a valid .nexe is
-  // chosen for the sandbox ISA, any current service runtime is shut down, the
-  // .nexe is loaded and run.
-
-  // Callback used when getting the manifest file as a local file descriptor.
-  void NaClManifestFileDidOpen(int32_t pp_error);
-
-  // Processes the JSON manifest string and starts loading the nexe.
-  void ProcessNaClManifest(const std::string& manifest_json);
-
-  // Keep track of the NaCl module subprocess that was spun up in the plugin.
-  NaClSubprocess main_subprocess_;
-
-  bool uses_nonsfi_mode_;
-
-  nacl::DescWrapperFactory* wrapper_factory_;
-
-  pp::CompletionCallbackFactory<Plugin> callback_factory_;
-
-  nacl::scoped_ptr<PnaclCoordinator> pnacl_coordinator_;
-
-  int exit_status_;
-
-  PP_NaClFileInfo nexe_file_info_;
-
-  const PPB_NaCl_Private* nacl_interface_;
-  pp::UMAPrivate uma_interface_;
-};
-
-}  // namespace plugin
-
-#endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_