Fix memory error in previous CL.

tools/valgrind/memcheck/suppressions.txt

 # There are four kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 4700 matching lines @@
    fun:_ZN7WebCore11RenderBlock19layoutRunsAndFloatsERNS_15LineLayoutStateEb
    fun:_ZN7WebCore11RenderBlock20layoutInlineChildrenEbRiS1_
    fun:_ZN7WebCore11RenderBlock11layoutBlockEbiNS0_15BlockLayoutPassE
    fun:_ZN7WebCore11RenderBlock6layoutEv
    fun:_ZN7WebCore11RenderBlock16layoutBlockChildEPNS_9RenderBoxERNS0_10MarginInfoERiS5_
    fun:_ZN7WebCore11RenderBlock19layoutBlockChildrenEbRi
    fun:_ZN7WebCore11RenderBlock11layoutBlockEbiNS0_15BlockLayoutPassE
    fun:_ZN7WebCore11RenderBlock6layoutEv
 }
 {
-   bug_100315
-   Memcheck:Cond
-   fun:_ZN7browser8NavigateEPNS_14NavigateParamsE
-}
-{
    bug_100330
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN25TestingAutomationProvider42NavigateToURLBlockUntilNavigationsCompleteEiRK4GURLiPN3IPC7MessageE
 }
 
 #-----------------------------------------------------------------------
 # 4. These only occur on our Google workstations
 {
    bug_todo_freeres
@@ skipping 15 matching lines @@
 }
 {
    bug_todo_getdelim2
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }