Rename GetSite in SiteInstance to GetSiteURL.

This rename is in preparation of adding a GetSite method, which will return a structure instead of GURL.

BUG=145500


Review URL: https://chromiumcodereview.appspot.com/11000027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@159263 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/browser/site_instance_impl.cc b/content/browser/site_instance_impl.cc
index d8fcd0e..59a2aac 100644
--- a/content/browser/site_instance_impl.cc
+++ b/content/browser/site_instance_impl.cc
@@ -180,7 +180,7 @@
   }
 }
 
-const GURL& SiteInstanceImpl::GetSite() const {
+const GURL& SiteInstanceImpl::GetSiteURL() const {
   return site_;
 }