Move renderer plugin code into a new component.

components/plugins/renderer/plugin_placeholder.h

Index: components/plugins/renderer/plugin_placeholder.h
diff --git a/chrome/renderer/plugins/plugin_placeholder.h b/components/plugins/renderer/plugin_placeholder.h
similarity index 56%
rename from chrome/renderer/plugins/plugin_placeholder.h
rename to components/plugins/renderer/plugin_placeholder.h
index 7ec95bae6b1786330404ae10af3c32a93196e731..513c6aee111d01949f1d08edf3d2016c21d1ce6c 100644
--- a/chrome/renderer/plugins/plugin_placeholder.h
+++ b/components/plugins/renderer/plugin_placeholder.h
@@ -5,7 +5,7 @@
 #ifndef CHROME_RENDERER_PLUGINS_PLUGIN_PLACEHOLDER_H_
 #define CHROME_RENDERER_PLUGINS_PLUGIN_PLACEHOLDER_H_
 
-#include "chrome/renderer/plugins/webview_plugin.h"
+#include "components/plugins/renderer/webview_plugin.h"
 #include "content/public/common/webplugininfo.h"
 #include "content/public/renderer/context_menu_client.h"
 #include "content/public/renderer/render_process_observer.h"
@@ -13,8 +13,6 @@
 #include "third_party/WebKit/public/web/WebPluginParams.h"
 #include "webkit/renderer/cpp_bound_class.h"
 
-struct ChromeViewHostMsg_GetPluginInfo_Status;
-
 namespace content {
 struct WebPluginInfo;
 }
@@ -22,42 +20,9 @@ struct WebPluginInfo;
 // Placeholders can be used if a plug-in is missing or not available
 // (blocked or disabled).
 class PluginPlaceholder : public content::RenderViewObserver,
-                          public content::RenderProcessObserver,
                           public webkit_glue::CppBoundClass,
-                          public WebViewPlugin::Delegate,
-                          public content::ContextMenuClient {
+                          public WebViewPlugin::Delegate {
  public:
-  // Creates a new WebViewPlugin with a MissingPlugin as a delegate.
-  static PluginPlaceholder* CreateMissingPlugin(
-      content::RenderView* render_view,
-      WebKit::WebFrame* frame,
-      const WebKit::WebPluginParams& params);
-
-  static PluginPlaceholder* CreateErrorPlugin(
-      content::RenderView* render_view,
-      const base::FilePath& plugin_path);
-
-  static PluginPlaceholder* CreateBlockedPlugin(
-      content::RenderView* render_view,
-      WebKit::WebFrame* frame,
-      const WebKit::WebPluginParams& params,
-      const content::WebPluginInfo& info,
-      const std::string& identifier,
-      const string16& name,
-      int resource_id,
-      const string16& message);
-
-#if defined(ENABLE_MOBILE_YOUTUBE_PLUGIN)
-  // Placeholder for old style embedded youtube video on mobile device. For old
-  // style embedded youtube video, it has a url in the form of
-  // http://www.youtube.com/v/VIDEO_ID. This placeholder replaces the url with a
-  // simple html page and clicking the play image redirects the user to the
-  // mobile youtube app.
-  static PluginPlaceholder* CreateMobileYoutubePlugin(
-       content::RenderView* render_view,
-       WebKit::WebFrame* frame,
-       const WebKit::WebPluginParams& params);
-#endif
 
   WebViewPlugin* plugin() { return plugin_; }
 
@@ -67,42 +32,35 @@ class PluginPlaceholder : public content::RenderViewObserver,
 
   void set_allow_loading(bool allow_loading) { allow_loading_ = allow_loading; }
 
-  void SetStatus(const ChromeViewHostMsg_GetPluginInfo_Status& status);
-
-#if defined(ENABLE_PLUGIN_INSTALLATION)
-  int32 CreateRoutingId();
-#endif
-
 #if defined(ENABLE_MOBILE_YOUTUBE_PLUGIN)
   // Whether this is a youtube url.
   static bool IsYouTubeURL(const GURL& url, const std::string& mime_type);
 #endif
 
- private:
+ protected:
   // |render_view| and |frame| are weak pointers. If either one is going away,
   // our |plugin_| will be destroyed as well and will notify us.
   PluginPlaceholder(content::RenderView* render_view,
                     WebKit::WebFrame* frame,
                     const WebKit::WebPluginParams& params,
-                    const std::string& html_data,
-                    const string16& title);
+                    const std::string& html_data);
 
   virtual ~PluginPlaceholder();
 
-  // WebViewPlugin::Delegate methods:
-  virtual void BindWebFrame(WebKit::WebFrame* frame) OVERRIDE;
-  virtual void WillDestroyPlugin() OVERRIDE;
-  virtual void ShowContextMenu(const WebKit::WebMouseEvent&) OVERRIDE;
-
-  // content::RenderViewObserver methods:
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+#if defined(ENABLE_MOBILE_YOUTUBE_PLUGIN)
+  static std::string GetYoutubeVideoId(const WebKit::WebPluginParams& params);
+#endif
 
-  // content::RenderProcessObserver methods:
-  virtual void PluginListChanged() OVERRIDE;
+  void OnLoadBlockedPlugins(const std::string& identifier);
+  void OnSetIsPrerendering(bool is_prerendering);
 
-  // content::ContextMenuClient methods:
-  virtual void OnMenuAction(int request_id, unsigned action) OVERRIDE;
-  virtual void OnMenuClosed(int request_id) OVERRIDE;
+  void SetMessage(const string16& message);
+  void SetPluginInfo(const content::WebPluginInfo& plugin_info);
+  const content::WebPluginInfo& GetPluginInfo() const;
+  void SetIdentifier(const std::string& identifier);
+  WebKit::WebFrame* GetFrame();
+  const WebKit::WebPluginParams& GetPluginParams() const;
+  bool LoadingAllowed() const { return allow_loading_; }
 
   // Replace this placeholder with a different plugin (which could be
   // a placeholder again).
@@ -114,6 +72,12 @@ class PluginPlaceholder : public content::RenderViewObserver,
   // Load the blocked plugin.
   void LoadPlugin();
 
+ private:
+  // WebViewPlugin::Delegate methods:
+  virtual void BindWebFrame(WebKit::WebFrame* frame) OVERRIDE;
+  virtual void WillDestroyPlugin() OVERRIDE;
+  virtual void ShowContextMenu(const WebKit::WebMouseEvent&) OVERRIDE;
+
   // Javascript callbacks:
   // Load the blocked plugin by calling LoadPlugin().
   // Takes no arguments, and returns nothing.
@@ -126,26 +90,19 @@ class PluginPlaceholder : public content::RenderViewObserver,
                     webkit_glue::CppVariant* result);
 
   // Opens chrome://plugins in a new tab.
-  // Takes no arguments, and returns nothing.
+  // Arguments are required by the caller, but not used.
   void OpenAboutPluginsCallback(const webkit_glue::CppArgumentList& args,
                                 webkit_glue::CppVariant* result);
 
+  // Overridable version of the above for use in derived classes that have
+  // real about boxes, really has no arguments.
+  virtual void OpenAboutPlugins();
+
   void DidFinishLoadingCallback(const webkit_glue::CppArgumentList& args,
                                 webkit_glue::CppVariant* result);
 
-  void OnLoadBlockedPlugins(const std::string& identifier);
-  void OnSetIsPrerendering(bool is_prerendering);
-#if defined(ENABLE_PLUGIN_INSTALLATION)
-  void OnDidNotFindMissingPlugin();
-  void OnFoundMissingPlugin(const string16& plugin_name);
-  void OnStartedDownloadingPlugin();
-  void OnFinishedDownloadingPlugin();
-  void OnErrorDownloadingPlugin(const std::string& error);
-  void OnCancelledDownloadingPlugin();
-#endif
-
 #if defined(ENABLE_MOBILE_YOUTUBE_PLUGIN)
- // Check whether the url is valid.
+  // Check whether the url is valid.
   static bool IsValidYouTubeVideo(const std::string& path);
 
   // Opens a youtube app in the current tab.
@@ -153,7 +110,6 @@ class PluginPlaceholder : public content::RenderViewObserver,
                               webkit_glue::CppVariant* result);
 #endif
 
-  void SetMessage(const string16& message);
   void UpdateMessage();
 
   WebKit::WebFrame* frame_;
@@ -162,30 +118,16 @@ class PluginPlaceholder : public content::RenderViewObserver,
 
   content::WebPluginInfo plugin_info_;
 
-  string16 title_;
   string16 message_;
 
-  // We use a scoped_ptr so we can forward-declare the struct; it's defined in
-  // an IPC message file which can't be easily included in other header files.
-  scoped_ptr<ChromeViewHostMsg_GetPluginInfo_Status> status_;
-
   // True iff the plugin was blocked because the page was being prerendered.
   // Plugin will automatically be loaded when the page is displayed.
   bool is_blocked_for_prerendering_;
   bool allow_loading_;
 
-#if defined(ENABLE_PLUGIN_INSTALLATION)
-  // |routing_id()| is the routing ID of our associated RenderView, but we have
-  // a separate routing ID for messages specific to this placeholder.
-  int32 placeholder_routing_id_;
-#endif
-
   bool hidden_;
-  bool has_host_;
   bool finished_loading_;
-  string16 plugin_name_;
   std::string identifier_;
-  int context_menu_request_id_;  // Nonzero when request pending.
 
   DISALLOW_COPY_AND_ASSIGN(PluginPlaceholder);
 };