linux: only create browser-side plugin container after plugin requests it

On Windows, windowed plugins are parented in a two-stage process: initially,
the plugin is parented to the render view, then later it's reparented to
a special per-plugin window.

On Linux, plugin embedding always needs a special per-plugin window before
it can be initialized.  So there's no way to do the two-stage initialization
process, and we only want to construct the browser-side plugin container for
windowed plugins after the plugin requests it.

Plumbing this through the WebPlugin interface will also allow us to side-route
this request for window creation out to the browser process in the
multi-process case.

BUG=15421
TEST=plugins still work in test_shell

Review URL: http://codereview.chromium.org/150034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19560 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 0 deletions

diff --git a/webkit/glue/webplugin_impl.cc b/webkit/glue/webplugin_impl.cc
index 35ea7b2..e554255 100644
--- a/webkit/glue/webplugin_impl.cc
+++ b/webkit/glue/webplugin_impl.cc
@@ -388,6 +388,17 @@ WebPluginImpl::WebPluginImpl(WebCore::HTMLPlugInElement* element,
 WebPluginImpl::~WebPluginImpl() {
 }
 
+#if defined(OS_LINUX)
+gfx::PluginWindowHandle WebPluginImpl::CreatePluginContainer() {
+  WebCore::Frame* frame = element_->document()->frame();
+  WebFrameImpl* webframe = WebFrameImpl::FromFrame(frame);
+  WebViewImpl* webview = webframe->GetWebViewImpl();
+  if (!webview->delegate())
+    return 0;
+  return webview->delegate()->CreatePluginContainer();
+}
+#endif
+
 void WebPluginImpl::SetWindow(gfx::PluginWindowHandle window) {
   if (window) {
     DCHECK(!windowless_);  // Make sure not called twice.