Browser Plugin: Only install BrowserPluginMessageFilter if render process supports BrowserPlugin.

content/browser/site_instance_impl.cc

Index: content/browser/site_instance_impl.cc
diff --git a/content/browser/site_instance_impl.cc b/content/browser/site_instance_impl.cc
index 79cd2c2311617132ee5ec0f663dd273c258b5e9d..3a93f25c9fa5de8db5c3b77772fed47daedd22bd 100644
--- a/content/browser/site_instance_impl.cc
+++ b/content/browser/site_instance_impl.cc
@@ -118,8 +118,11 @@ RenderProcessHost* SiteInstanceImpl::GetProcess() {
         StoragePartitionImpl* partition =
             static_cast<StoragePartitionImpl*>(
                 BrowserContext::GetStoragePartition(browser_context, this));
+        bool supports_browser_plugin = GetContentClient()->browser()->
+            SupportsBrowserPlugin(browser_context, site_);
         process_ =
             new RenderProcessHostImpl(browser_context, partition,
+                                      supports_browser_plugin,
                                       site_.SchemeIs(chrome::kGuestScheme));
       }
     }