Add ppapi plugins to about:plugins

Querying the plugin path and actual mime type is moved from creation of the
WebPluginDelegate to creation of the WebPlugin.  This cleaned up some code.

R=jam
BUG=45289
TEST=none
Review URL: http://codereview.chromium.org/2262002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@48484 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 105 insertions, 0 deletions

diff --git a/chrome/common/pepper_plugin_registry.cc b/chrome/common/pepper_plugin_registry.cc
new file mode 100644
index 0000000..0a23eca
--- /dev/null
+++ b/chrome/common/pepper_plugin_registry.cc
@@ -0,0 +1,67 @@
+// Copyright (c) 2010 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 "chrome/common/pepper_plugin_registry.h"
+
+#include "base/command_line.h"
+#include "base/string_util.h"
+#include "chrome/common/chrome_switches.h"
+
+// static
+PepperPluginRegistry* PepperPluginRegistry::GetInstance() {
+  static PepperPluginRegistry registry;
+  return &registry;
+}
+
+// static
+void PepperPluginRegistry::GetList(std::vector<PepperPluginInfo>* plugins) {
+  const std::wstring& value = CommandLine::ForCurrentProcess()->GetSwitchValue(
+      switches::kRegisterPepperPlugins);
+  if (value.empty())
+    return;
+
+  // FORMAT:
+  // command-line = <plugin-entry> + *( LWS + "," + LWS + <plugin-entry> )
+  // plugin-entry = <file-path> + *1( LWS + ";" + LWS + <mime-type> )
+
+  std::vector<std::wstring> modules;
+  SplitString(value, ',', &modules);
+  for (size_t i = 0; i < modules.size(); ++i) {
+    std::vector<std::wstring> parts;
+    SplitString(modules[i], ';', &parts);
+    if (parts.size() < 2) {
+      DLOG(ERROR) << "Required mime-type not found";
+      continue;
+    }
+
+    PepperPluginInfo plugin;
+    plugin.path = FilePath::FromWStringHack(parts[0]);
+    for (size_t j = 1; j < parts.size(); ++j)
+      plugin.mime_types.push_back(WideToASCII(parts[j]));
+
+    plugins->push_back(plugin);
+  }
+}
+
+pepper::PluginModule* PepperPluginRegistry::GetModule(
+    const FilePath& path) const {
+  ModuleMap::const_iterator it = modules_.find(path);
+  if (it == modules_.end())
+    return NULL;
+  return it->second;
+}
+
+PepperPluginRegistry::PepperPluginRegistry() {
+  std::vector<PepperPluginInfo> plugins;
+  GetList(&plugins);
+  for (size_t i = 0; i < plugins.size(); ++i) {
+    const FilePath& path = plugins[i].path;
+    ModuleHandle module = pepper::PluginModule::CreateModule(path);
+    if (!module) {
+      DLOG(ERROR) << "Failed to load pepper module: " << path.value();
+      continue;
+    }
+    modules_[path] = module;
+  }
+}
diff --git a/chrome/common/pepper_plugin_registry.h b/chrome/common/pepper_plugin_registry.h
new file mode 100644
index 0000000..940a1ba
--- /dev/null
+++ b/chrome/common/pepper_plugin_registry.h
@@ -0,0 +1,38 @@
+// Copyright (c) 2010 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_COMMON_PEPPER_PLUGIN_REGISTRY_H_
+#define CHROME_COMMON_PEPPER_PLUGIN_REGISTRY_H_
+
+#include <string>
+#include <map>
+
+#include "webkit/glue/plugins/pepper_plugin_module.h"
+
+struct PepperPluginInfo {
+  FilePath path;
+  std::vector<std::string> mime_types;
+};
+
+// This class holds references to all of the known pepper plugin modules.
+class PepperPluginRegistry {
+ public:
+  static PepperPluginRegistry* GetInstance();
+
+  // Returns the list of known pepper plugins.  This method is static so that
+  // it can be used by the browser process, which has no need to load the
+  // pepper plugin modules.
+  static void GetList(std::vector<PepperPluginInfo>* plugins);
+
+  pepper::PluginModule* GetModule(const FilePath& path) const;
+
+ private:
+  PepperPluginRegistry();
+
+  typedef scoped_refptr<pepper::PluginModule> ModuleHandle;
+  typedef std::map<FilePath, ModuleHandle> ModuleMap;
+  ModuleMap modules_;
+};
+
+#endif  // CHROME_COMMON_PEPPER_PLUGIN_REGISTRY_H_