Don't load plugins on prerendered pages until the pages are displayed....

chrome/browser/prerender/prerender_manager.cc

Index: chrome/browser/prerender/prerender_manager.cc
===================================================================
--- chrome/browser/prerender/prerender_manager.cc	(revision 71683)
+++ chrome/browser/prerender/prerender_manager.cc	(working copy)
@@ -8,8 +8,10 @@
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/prerender/prerender_contents.h"
+#include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tab_contents/render_view_host_manager.h"
+#include "chrome/common/render_messages.h"
 
 struct PrerenderManager::PrerenderContentsData {
   PrerenderContents* contents_;
@@ -93,6 +95,7 @@
 
   RenderViewHost* rvh = pc->render_view_host();
   pc->set_render_view_host(NULL);
+  rvh->Send(new ViewMsg_DisplayPrerenderedPage(rvh->routing_id()));

[cbentzel, 2011/01/20 19:46:59]

Long term it _feels_ like this should go in the PrerenderContents rather than
the PrerenderManager, but I certainly don't think that change needs to happen
now. 

[mmenke, 2011/01/20 20:04:22]

Hmm...Might make sense to have the PrerenderContents manage the entire swap
itself instead of the PrerenderManager.

Or might make sense to move it over to TabContents::SwapInRenderViewHost(),
since the TabContents really dictates what's visible.

   tc->SwapInRenderViewHost(rvh);
 
   ViewHostMsg_FrameNavigate_Params* p = pc->navigate_params();