Remove valgrind suppression for bug 87245.

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 # running overnight and removing outdated bugs/suppressions.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 3753 matching lines @@
 {
    bug_87222
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN10URLFetcher6CreateEiRK4GURLNS_11RequestTypeEPNS_8DelegateE
    fun:_ZN16TranslateManager36FetchLanguageListFromTranslateServerEP11PrefService
    fun:_Z11BrowserMainRK18MainFunctionParams
    fun:*RunNamedProcessTypeMainERKSsRK18MainFunctionParams
 }
 {
-   bug_87245
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_Z17NewRunnableMethodIN11webkit_glue18WebMediaPlayerImpl5ProxyEMS2_FvvEEP14CancelableTaskPT_T0_
-   fun:_ZN11webkit_glue18WebMediaPlayerImpl5Proxy7RepaintEv
-   fun:_ZN11webkit_glue17VideoRendererImpl16OnFrameAvailableEv
-   fun:_ZN5media17VideoRendererBase10ThreadMainEv
-}
-{
    bug_87408
    Memcheck:Addr4
    fun:sqlite3MemSize
    fun:sqlite3MallocSize
    fun:sqlite3_free
    fun:sqlite3_close
    fun:_ZN3sql10Connection5CloseEv
    fun:_ZN3sql10ConnectionD2Ev
    fun:_ZN3sql10ConnectionD1Ev
    fun:_ZN7history16ArchivedDatabaseD0Ev
@@ skipping 1460 matching lines @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }