Reland: Plugin Placeholders: Refactor for platforms that don't support plugins

chrome/renderer/plugins/chrome_plugin_placeholder.h

Index: chrome/renderer/plugins/chrome_plugin_placeholder.h
diff --git a/chrome/renderer/plugins/chrome_plugin_placeholder.h b/chrome/renderer/plugins/chrome_plugin_placeholder.h
index d5fb2f9406d7554c85c870c47492d3e6fc42ce78..e54c303b3bc7ebc19045b9190b6ccb82e72baa87 100644
--- a/chrome/renderer/plugins/chrome_plugin_placeholder.h
+++ b/chrome/renderer/plugins/chrome_plugin_placeholder.h
@@ -32,7 +32,7 @@ class ChromePluginPlaceholder : public plugins::LoadablePluginPlaceholder,
                                 public content::RenderProcessObserver,
                                 public content::ContextMenuClient {
  public:
-  static const char kPluginPlaceholderDataURL[];
+  static gin::WrapperInfo kWrapperInfo;
 
   static ChromePluginPlaceholder* CreateBlockedPlugin(
       content::RenderFrame* render_frame,
@@ -46,21 +46,20 @@ class ChromePluginPlaceholder : public plugins::LoadablePluginPlaceholder,
       const PlaceholderPosterInfo& poster_info);
 
   // Creates a new WebViewPlugin with a MissingPlugin as a delegate.
-  static ChromePluginPlaceholder* CreateMissingPlugin(
+  static ChromePluginPlaceholder* CreateLoadableMissingPlugin(
       content::RenderFrame* render_frame,
       blink::WebLocalFrame* frame,
       const blink::WebPluginParams& params);
 
-  static ChromePluginPlaceholder* CreateErrorPlugin(
-      content::RenderFrame* render_frame,
-      const base::FilePath& plugin_path);
-
   void SetStatus(ChromeViewHostMsg_GetPluginInfo_Status status);
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   int32 CreateRoutingId();
 #endif
 
+  // gin::Wrappable (via PluginPlaceholder) method
+  gin::WrapperInfo* GetWrapperInfo() override;
+
  private:
   ChromePluginPlaceholder(content::RenderFrame* render_frame,
                           blink::WebLocalFrame* frame,