LSan: suppress a leak in BookmarkNodeData::ClipboardContainsBookmarks().

BUG=350125
TBR=erg@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/192453008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255996 0039d316-1c4b-4281-b951-d872f2087c98

tools/lsan/suppressions.txt

@@ -94,4 +94,7 @@ leak:base::EnsureProcessTerminated
 # http://crbug.com/322671
 leak:content::SpeechRecognitionBrowserTest::SetUpOnMainThread
 
+# http://crbug.com/350125
+leak:BookmarkNodeData::ClipboardContainsBookmarks
+
 # PLEASE READ ABOVE BEFORE ADDING NEW SUPPRESSIONS.