Separate plugin_metadata from plugin_installer, thread-safe plugin_finder

chrome/browser/plugins/plugin_metadata.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_PLUGINS_PLUGIN_INSTALLER_H_
-#define CHROME_BROWSER_PLUGINS_PLUGIN_INSTALLER_H_
+#ifndef CHROME_BROWSER_PLUGINS_PLUGIN_METADATA_H_
+#define CHROME_BROWSER_PLUGINS_PLUGIN_METADATA_H_
 
-#include "base/observer_list.h"
+#include <map>
+
 #include "base/string16.h"
 #include "base/version.h"
 #include "googleurl/src/gurl.h"
-#include "content/public/browser/download_id.h"
-#include "content/public/browser/download_item.h"
-#include "net/base/net_errors.h"
-
-class FilePath;
-class PluginInstallerObserver;
-class TabContents;
-class WeakPluginInstallerObserver;
-
-namespace content {
-class WebContents;
-}
 
 namespace webkit {
 struct WebPluginInfo;
 }
 
-class PluginInstaller : public content::DownloadItem::Observer {
+class PluginMetadata {
  public:
-  enum InstallerState {
-    INSTALLER_STATE_IDLE,
-    INSTALLER_STATE_DOWNLOADING,
-  };
-
   // Information about a certain version of the plug-in.
   enum SecurityStatus {
     SECURITY_STATUS_UP_TO_DATE,
     SECURITY_STATUS_OUT_OF_DATE,
     SECURITY_STATUS_REQUIRES_AUTHORIZATION,
   };
 
-  PluginInstaller(const std::string& identifier,
-                  const string16& name,
-                  bool url_for_display,
-                  const GURL& plugin_url,
-                  const GURL& help_url,
-                  const string16& group_name_matcher);
-  virtual ~PluginInstaller();
-
-  virtual void OnDownloadUpdated(content::DownloadItem* download) OVERRIDE;
-  virtual void OnDownloadDestroyed(content::DownloadItem* download) OVERRIDE;
-
-  void AddObserver(PluginInstallerObserver* observer);
-  void RemoveObserver(PluginInstallerObserver* observer);
-
-  void AddWeakObserver(WeakPluginInstallerObserver* observer);
-  void RemoveWeakObserver(WeakPluginInstallerObserver* observer);
+  PluginMetadata(const std::string& identifier,
+                 const string16& name,
+                 bool url_for_display,
+                 const GURL& plugin_url,
+                 const GURL& help_url,
+                 const string16& group_name_matcher);
+  ~PluginMetadata();
 
   // Unique identifier for the plug-in.
   const std::string& identifier() const { return identifier_; }
 
   // Human-readable name of the plug-in.
   const string16& name() const { return name_; }
 
-  // Checks if the plug-in matches the group matcher.
-  bool MatchesPlugin(const webkit::WebPluginInfo& plugin);
-
   // If |url_for_display| is false, |plugin_url| is the URL of the download page
   // for the plug-in, which should be opened in a new tab. If it is true,
   // |plugin_url| is the URL of the plug-in installer binary, which can be
   // directly downloaded.
   bool url_for_display() const { return url_for_display_; }
   const GURL& plugin_url() const { return plugin_url_; }
 
   // URL to open when the user clicks on the "Problems installing?" link.
   const GURL& help_url() const { return help_url_; }
 
-  InstallerState state() const { return state_; }
-
   // Adds information about a plug-in version.
   void AddVersion(const Version& version, SecurityStatus status);
 
-  // Returns the security status for the given plug-in (i.e. whether it is
-  // considered out-of-date, etc.)
-  SecurityStatus GetSecurityStatus(const webkit::WebPluginInfo& plugin) const;
-
-  // Opens the download URL in a new tab. This method should only be called if
-  // |url_for_display| returns true.
-  void OpenDownloadURL(content::WebContents* web_contents);
-
-  // Starts downloading the download URL and opens the downloaded file
-  // when finished. This method should only be called if |url_for_display|
-  // returns false.
-  void StartInstalling(TabContents* tab_contents);
+  // Checks if the plug-in matches the group matcher.
+  bool MatchesPlugin(const webkit::WebPluginInfo& plugin);
 
   // If |status_str| describes a valid security status, writes it to |status|
   // and returns true, else returns false and leaves |status| unchanged.
   static bool ParseSecurityStatus(const std::string& status_str,
                                   SecurityStatus* status);
 
+  // Returns the security status for the given plug-in (i.e. whether it is
+  // considered out-of-date, etc.)
+  SecurityStatus GetSecurityStatus(const webkit::WebPluginInfo& plugin) const;
+
  private:
   struct VersionComparator {
     bool operator() (const Version& lhs, const Version& rhs) const;
   };
 
-  void DownloadStarted(scoped_refptr<content::DownloadManager> dlm,
-                       content::DownloadId download_id,
-                       net::Error error);
-  void DownloadError(const std::string& msg);
-  void DownloadCancelled();
-
   std::string identifier_;
   string16 name_;
   string16 group_name_matcher_;
   bool url_for_display_;
   GURL plugin_url_;
   GURL help_url_;
   std::map<Version, SecurityStatus, VersionComparator> versions_;
-
-  InstallerState state_;
-  ObserverList<PluginInstallerObserver> observers_;
-  ObserverList<WeakPluginInstallerObserver> weak_observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(PluginInstaller);
 };
 
-#endif  // CHROME_BROWSER_PLUGINS_PLUGIN_INSTALLER_H_
+#endif  // CHROME_BROWSER_PLUGINS_PLUGIN_METADATA_H_