Remove some obsolete FLAKY_ markers, and add some missing bug references

chrome/browser/renderer_host/resource_dispatcher_host_uitest.cc

Index: chrome/browser/renderer_host/resource_dispatcher_host_uitest.cc
diff --git a/chrome/browser/renderer_host/resource_dispatcher_host_uitest.cc b/chrome/browser/renderer_host/resource_dispatcher_host_uitest.cc
index 67cbe9266d14349b3aab1a6cd30a4fe13736346e..86cd4c74bdcce219a21886f99a7b6ff310dc5b52 100644
--- a/chrome/browser/renderer_host/resource_dispatcher_host_uitest.cc
+++ b/chrome/browser/renderer_host/resource_dispatcher_host_uitest.cc
@@ -77,7 +77,7 @@ TEST_F(ResourceDispatcherTest, ContentDispositionInline) {
 }
 
 // Test for bug #1091358.
-// Flakey due to NavigateToURL bug: see http://crbug.com/55380
+// Flaky: http://crbug.com/62595
 TEST_F(ResourceDispatcherTest, FLAKY_SyncXMLHttpRequest) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP,
                               FilePath(FILE_PATH_LITERAL("chrome/test/data")));