Test extension reloading behavior.

content/browser/browsing_instance.cc

Index: content/browser/browsing_instance.cc
diff --git a/content/browser/browsing_instance.cc b/content/browser/browsing_instance.cc
index d10ea209b2f0bd44bc9be0959c3524a9155db5e3..305a6bbcfb7ac49542e74332c0f50ddbeb89d29e 100644
--- a/content/browser/browsing_instance.cc
+++ b/content/browser/browsing_instance.cc
@@ -26,7 +26,7 @@ bool BrowsingInstance::HasSiteInstance(const GURL& url) {
   return site_instance_map_.find(site) != site_instance_map_.end();
 }
 
-SiteInstance* BrowsingInstance::GetSiteInstanceForURL(const GURL& url) {
+SiteInstanceImpl* BrowsingInstance::GetSiteInstanceForURL(const GURL& url) {
   std::string site =
       SiteInstanceImpl::GetSiteForURL(browser_context_, url)
           .possibly_invalid_spec();
@@ -44,7 +44,7 @@ SiteInstance* BrowsingInstance::GetSiteInstanceForURL(const GURL& url) {
   return instance;
 }
 
-void BrowsingInstance::RegisterSiteInstance(SiteInstance* site_instance) {
+void BrowsingInstance::RegisterSiteInstance(SiteInstanceImpl* site_instance) {
   DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->
          browsing_instance_ == this);
   DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite());
@@ -62,7 +62,7 @@ void BrowsingInstance::RegisterSiteInstance(SiteInstance* site_instance) {
   }
 }
 
-void BrowsingInstance::UnregisterSiteInstance(SiteInstance* site_instance) {
+void BrowsingInstance::UnregisterSiteInstance(SiteInstanceImpl* site_instance) {
   DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->
          browsing_instance_ == this);
   DCHECK(static_cast<SiteInstanceImpl*>(site_instance)->HasSite());