Adding MimeHandlerView.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index fbf3ce43f5328d4d8c79f65694d86ba37a1322a1..83c01b1c61eb452e9674c79f181cfa06584a180d 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -1526,7 +1526,7 @@ blink::WebPlugin* RenderFrameImpl::createPlugin(
 
   if (base::UTF16ToUTF8(params.mimeType) == kBrowserPluginMimeType) {
     return render_view_->GetBrowserPluginManager()->CreateBrowserPlugin(
-        render_view_.get(), frame, false);
+        render_view_.get(), frame, NULL);

[Ken Rockot(use gerrit already), 2014/09/04 00:57:43]

Of course it gets a little annoying to write
make_scoped_ptr<BrowserPluginDelegate>(NULL), but I think it's probably better
than weak enforcement.

[lazyboy, 2014/09/04 18:59:33]

Done.

   }
 
 #if defined(ENABLE_PLUGINS)
@@ -1540,8 +1540,11 @@ blink::WebPlugin* RenderFrameImpl::createPlugin(
     return NULL;
 
   if (info.type == content::WebPluginInfo::PLUGIN_TYPE_BROWSER_PLUGIN) {
+    BrowserPluginDelegate* browser_plugin_delegate =
+        GetContentClient()->renderer()->CreateBrowserPluginDelegate(
+            this, base::UTF16ToUTF8(params.mimeType));
     return render_view_->GetBrowserPluginManager()->CreateBrowserPlugin(
-        render_view_.get(), frame, true);
+        render_view_.get(), frame, browser_plugin_delegate);
   }