Disable TestNoScriptDuplicatesOnPanelSwitch

This was seen with dgozman who agreed to look into
the failure (probably related to one of their change).

BUG=397648
TBR=dgozman@chromium.org
NOTRY=True

Review URL: https://codereview.chromium.org/417123004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@285646 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/devtools/devtools_sanity_browsertest.cc

@@ -741,7 +741,7 @@ IN_PROC_BROWSER_TEST_F(DevToolsExtensionTest,
 
 // Tests that scripts are not duplicated after Scripts Panel switch.
 IN_PROC_BROWSER_TEST_F(DevToolsSanityTest,
-                       TestNoScriptDuplicatesOnPanelSwitch) {
+                       DISABLED_TestNoScriptDuplicatesOnPanelSwitch) {
   RunTest("testNoScriptDuplicatesOnPanelSwitch", kDebuggerTestPage);
 }