Rename all methods accessing Singleton<T> as GetInstance().
This is in preparation to a subsequent CL where Singleton<T> will restrict access to only the type being made singleton.

I also moved pepper::ResourceTracker to a lazy instance since there were too many places in code where this class was being accessed from and this was a smaller change than renaming methods in that case.

BUG=65298
TEST=all existing tests should pass.

Review URL: http://codereview.chromium.org/5685007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68982 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/ssl/ssl_error_info.cc b/chrome/browser/ssl/ssl_error_info.cc
index 674a64b..b10e2120 100644
--- a/chrome/browser/ssl/ssl_error_info.cc
+++ b/chrome/browser/ssl/ssl_error_info.cc
@@ -253,7 +253,7 @@
     if (cert_status & kErrorFlags[i]) {
       count++;
       if (!cert.get()) {
-        bool r = CertStore::GetSharedInstance()->RetrieveCert(cert_id, &cert);
+        bool r = CertStore::GetInstance()->RetrieveCert(cert_id, &cert);
         DCHECK(r);
       }
       if (errors)