Remove NPAPI from browser and utility

content/browser/plugin_loader_posix.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 CONTENT_BROWSER_PLUGIN_LOADER_POSIX_H_
-#define CONTENT_BROWSER_PLUGIN_LOADER_POSIX_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/time/time.h"
-#include "content/browser/plugin_service_impl.h"
-#include "content/public/browser/utility_process_host_client.h"
-#include "content/public/common/webplugininfo.h"
-#include "ipc/ipc_sender.h"
-
-namespace content {
-class UtilityProcessHost;
-
-// This class is responsible for managing the out-of-process plugin loading on
-// POSIX systems. It primarily lives on the IO thread, but has a brief stay on
-// the FILE thread to iterate over plugin directories when it is first
-// constructed.
-//
-// The following is the algorithm used to load plugins:
-// 1. This asks the PluginList for the list of all potential plugins to attempt
-//    to load. This is referred to as the canonical list.
-// 2. The child process this hosts is forked and the canonical list is sent to
-//    it.
-// 3. The child process iterates over the canonical list, attempting to load
-//    each plugin in the order specified by the list. It sends an IPC message
-//    to the browser after each load, indicating success or failure. The two
-//    processes synchronize the position in the vector that will be used to
-//    attempt to load the next plugin.
-// 4. If the child dies during this process, the host forks another child and
-//    resumes loading at the position past the plugin that it just attempted to
-//    load, bypassing the problematic plugin.
-// 5. This algorithm continues until the canonical list has been walked to the
-//    end, after which the list of loaded plugins is set on the PluginList and
-//    the completion callback is run.
-class CONTENT_EXPORT PluginLoaderPosix
-    : public NON_EXPORTED_BASE(UtilityProcessHostClient),
-      public IPC::Sender {
- public:
-  PluginLoaderPosix();
-
-  // Must be called from the IO thread. The |callback| will be called on the IO
-  // thread too.
-  void GetPlugins(const PluginService::GetPluginsCallback& callback);
-
-  // UtilityProcessHostClient:
-  void OnProcessCrashed(int exit_code) override;
-  void OnProcessLaunchFailed() override;
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  // IPC::Sender:
-  bool Send(IPC::Message* msg) override;
-
- private:
-  ~PluginLoaderPosix() override;
-
-  // Called on the FILE thread to get the list of plugin paths to probe.
-  void GetPluginsToLoad();
-
-  // Must be called on the IO thread.
-  virtual void LoadPluginsInternal();
-
-  // Called after plugin loading has finished, if we don't know whether the
-  // plugin list has been invalidated in the mean time.
-  void GetPluginsWrapper(
-      const PluginService::GetPluginsCallback& callback,
-      const std::vector<WebPluginInfo>& plugins_unused);
-
-  // Message handlers.
-  void OnPluginLoaded(uint32_t index, const WebPluginInfo& plugin);
-  void OnPluginLoadFailed(uint32_t index, const base::FilePath& plugin_path);
-
-  // Returns an iterator to the plugin in |internal_plugins_| whose path
-  // matches |plugin_path|.
-  std::vector<WebPluginInfo>::iterator FindInternalPlugin(
-      const base::FilePath& plugin_path);
-
-  // Runs all the registered callbacks on each's target loop if the condition
-  // for ending the load process is done (i.e. the |next_load_index_| is outside
-  // the range of the |canonical_list_|).
-  bool MaybeRunPendingCallbacks();
-
-  // Returns true if there are no plugins left to load.
-  bool IsFinishedLoadingPlugins();
-
-  // This method should be called when the plugins are finished loading.
-  // It updates the PluginList's list of plugins, and runs the queued callbacks.
-  void FinishedLoadingPlugins();
-
-  // Launches the utility process that loads the plugins.
-  // Virtual for testing.
-  virtual bool LaunchUtilityProcess();
-
-  // The process host for which this is a client.
-  base::WeakPtr<UtilityProcessHost> process_host_;
-
-  // A list of paths to plugins which will be loaded by the utility process, in
-  // the order specified by this vector.
-  std::vector<base::FilePath> canonical_list_;
-
-  // The index in |canonical_list_| of the plugin that the child process will
-  // attempt to load next.
-  size_t next_load_index_;
-
-  // Internal plugins that have been registered at the time of loading.
-  std::vector<WebPluginInfo> internal_plugins_;
-
-  // A vector of plugins that have been loaded successfully.
-  std::vector<WebPluginInfo> loaded_plugins_;
-
-  // The callback and message loop on which the callback will be run when the
-  // plugin loading process has been completed.
-  std::vector<PluginService::GetPluginsCallback> callbacks_;
-
-  // True if there is (or is about to be) a utility process that loads plugins.
-  bool loading_plugins_;
-
-  friend class MockPluginLoaderPosix;
-  DISALLOW_COPY_AND_ASSIGN(PluginLoaderPosix);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_PLUGIN_LOADER_POSIX_H_