Split ppapi::PluginList from PepperPluginRegistry so that DRT could load pepper plugins.

content/common/pepper_plugin_registry.cc

 // Copyright (c) 2011 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 "content/common/pepper_plugin_registry.h"
 
-#include "base/command_line.h"
-#include "base/file_util.h"
-#include "base/native_library.h"
-#include "base/string_split.h"
-#include "base/string_util.h"
-#include "base/utf_string_conversions.h"
-#include "content/common/content_client.h"
-#include "content/common/content_switches.h"
-#include "webkit/plugins/npapi/plugin_list.h"
-
-namespace {
-
-// Appends any plugins from the command line to the given vector.
-void ComputePluginsFromCommandLine(std::vector<PepperPluginInfo>* plugins) {
-  bool out_of_process =
-      CommandLine::ForCurrentProcess()->HasSwitch(switches::kPpapiOutOfProcess);
-  const std::string value =
-      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kRegisterPepperPlugins);
-  if (value.empty())
-    return;
-
-  // FORMAT:
-  // command-line = <plugin-entry> + *( LWS + "," + LWS + <plugin-entry> )
-  // plugin-entry =
-  //    <file-path> +
-  //    ["#" + <name> + ["#" + <description> + ["#" + <version>]]] +
-  //    *1( LWS + ";" + LWS + <mime-type> )
-  std::vector<std::string> modules;
-  base::SplitString(value, ',', &modules);
-  for (size_t i = 0; i < modules.size(); ++i) {
-    std::vector<std::string> parts;
-    base::SplitString(modules[i], ';', &parts);
-    if (parts.size() < 2) {
-      DLOG(ERROR) << "Required mime-type not found";
-      continue;
-    }
-
-    std::vector<std::string> name_parts;
-    base::SplitString(parts[0], '#', &name_parts);
-
-    PepperPluginInfo plugin;
-    plugin.is_out_of_process = out_of_process;
-#if defined(OS_WIN)
-    // This means we can't provide plugins from non-ASCII paths, but
-    // since this switch is only for development I don't think that's
-    // too awful.
-    plugin.path = FilePath(ASCIIToUTF16(name_parts[0]));
-#else
-    plugin.path = FilePath(name_parts[0]);
-#endif
-    if (name_parts.size() > 1)
-      plugin.name = name_parts[1];
-    if (name_parts.size() > 2)
-      plugin.description = name_parts[2];
-    if (name_parts.size() > 3)
-      plugin.version = name_parts[3];
-    for (size_t j = 1; j < parts.size(); ++j) {
-      webkit::WebPluginMimeType mime_type(parts[j],
-                                          std::string(),
-                                          plugin.description);
-      plugin.mime_types.push_back(mime_type);
-    }
-
-    plugins->push_back(plugin);
-  }
-}
-
-}  // namespace
-
-webkit::WebPluginInfo PepperPluginInfo::ToWebPluginInfo() const {
-  webkit::WebPluginInfo info;
-
-  info.type = is_out_of_process ?
-      webkit::WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS :
-      webkit::WebPluginInfo::PLUGIN_TYPE_PEPPER_IN_PROCESS;
-
-  info.name = name.empty() ?
-      path.BaseName().LossyDisplayName() : UTF8ToUTF16(name);
-  info.path = path;
-  info.version = ASCIIToUTF16(version);
-  info.desc = ASCIIToUTF16(description);
-  info.mime_types = mime_types;
-
-  return info;
-}
-
-PepperPluginInfo::PepperPluginInfo()
-    : is_internal(false),
-      is_out_of_process(false) {
-}
-
-PepperPluginInfo::~PepperPluginInfo() {
-}
-
-bool MakePepperPluginInfo(const webkit::WebPluginInfo& webplugin_info,
-                          PepperPluginInfo* pepper_info) {
-  if (!webkit::IsPepperPlugin(webplugin_info))
-    return false;
-
-  pepper_info->is_out_of_process =
-      webplugin_info.type ==
-          webkit::WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS;
-
-  pepper_info->path = FilePath(webplugin_info.path);
-  pepper_info->name = UTF16ToASCII(webplugin_info.name);
-  pepper_info->description = UTF16ToASCII(webplugin_info.desc);
-  pepper_info->version = UTF16ToASCII(webplugin_info.version);
-  pepper_info->mime_types = webplugin_info.mime_types;
-  return true;
-}
-
 // static
 PepperPluginRegistry* PepperPluginRegistry::GetInstance() {
-  static PepperPluginRegistry* registry = NULL;
-  // This object leaks.  It is a temporary hack to work around a crash.
-  // http://code.google.com/p/chromium/issues/detail?id=63234
-  if (!registry)
-    registry = new PepperPluginRegistry;
-  return registry;
+  return Singleton<PepperPluginRegistry>::get();
 }
-
-// static
-void PepperPluginRegistry::ComputeList(std::vector<PepperPluginInfo>* plugins) {
-  content::GetContentClient()->AddPepperPlugins(plugins);
-  ComputePluginsFromCommandLine(plugins);
-}
-
-// static
-void PepperPluginRegistry::PreloadModules() {
-  std::vector<PepperPluginInfo> plugins;
-  ComputeList(&plugins);
-  for (size_t i = 0; i < plugins.size(); ++i) {
-    if (!plugins[i].is_internal) {
-      std::string error;
-      base::NativeLibrary library = base::LoadNativeLibrary(plugins[i].path,
-                                                            &error);
-      LOG_IF(WARNING, !library) << "Unable to load plugin "
-                                << plugins[i].path.value() << " "
-                                << error;
-    }
-  }
-}
-
-const PepperPluginInfo* PepperPluginRegistry::GetInfoForPlugin(
-    const webkit::WebPluginInfo& info) {
-  for (size_t i = 0; i < plugin_list_.size(); ++i) {
-    if (info.path == plugin_list_[i].path)
-      return &plugin_list_[i];
-  }
-  // We did not find the plugin in our list. But wait! the plugin can also
-  // be a latecomer, as it happens with pepper flash. This information
-  // is actually in |info| and we can use it to construct it and add it to
-  // the list. This same deal needs to be done in the browser side in
-  // PluginService.
-  PepperPluginInfo plugin;
-  if (!MakePepperPluginInfo(info, &plugin))
-    return NULL;
-
-  plugin_list_.push_back(plugin);
-  return &plugin_list_[plugin_list_.size() - 1];
-}
-
-webkit::ppapi::PluginModule* PepperPluginRegistry::GetLiveModule(
-    const FilePath& path) {
-  NonOwningModuleMap::iterator it = live_modules_.find(path);
-  if (it == live_modules_.end())
-    return NULL;
-  return it->second;
-}
-
-void PepperPluginRegistry::AddLiveModule(const FilePath& path,
-                                         webkit::ppapi::PluginModule* module) {
-  DCHECK(live_modules_.find(path) == live_modules_.end());
-  live_modules_[path] = module;
-}
-
-void PepperPluginRegistry::PluginModuleDead(
-    webkit::ppapi::PluginModule* dead_module) {
-  // DANGER: Don't dereference the dead_module pointer! It may be in the
-  // process of being deleted.
-
-  // Modules aren't destroyed very often and there are normally at most a
-  // couple of them. So for now we just do a brute-force search.
-  for (NonOwningModuleMap::iterator i = live_modules_.begin();
-       i != live_modules_.end(); ++i) {
-    if (i->second == dead_module) {
-      live_modules_.erase(i);
-      return;
-    }
-  }
-  NOTREACHED();  // Should have always found the module above.
-}
-
-PepperPluginRegistry::~PepperPluginRegistry() {
-  // Explicitly clear all preloaded modules first. This will cause callbacks
-  // to erase these modules from the live_modules_ list, and we don't want
-  // that to happen implicitly out-of-order.
-  preloaded_modules_.clear();
-
-  DCHECK(live_modules_.empty());
-}
-
-PepperPluginRegistry::PepperPluginRegistry() {
-  ComputeList(&plugin_list_);
-
-  // Note that in each case, AddLiveModule must be called before completing
-  // initialization. If we bail out (in the continue clauses) before saving
-  // the initialized module, it will still try to unregister itself in its
-  // destructor.
-  for (size_t i = 0; i < plugin_list_.size(); i++) {
-    const PepperPluginInfo& current = plugin_list_[i];
-    if (current.is_out_of_process)
-      continue;  // Out of process plugins need no special pre-initialization.
-
-    scoped_refptr<webkit::ppapi::PluginModule> module =
-        new webkit::ppapi::PluginModule(current.name, current.path, this);
-    AddLiveModule(current.path, module);
-    if (current.is_internal) {
-      if (!module->InitAsInternalPlugin(current.internal_entry_points)) {
-        DLOG(ERROR) << "Failed to load pepper module: " << current.path.value();
-        continue;
-      }
-    } else {
-      // Preload all external plugins we're not running out of process.
-      if (!module->InitAsLibrary(current.path)) {
-        DLOG(ERROR) << "Failed to load pepper module: " << current.path.value();
-        continue;
-      }
-    }
-    preloaded_modules_[current.path] = module;
-  }
-}
-