Valgrind: Add several new suppressions.

tools/valgrind/memcheck/suppressions.txt

 # There are three 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 # running overnight and removing outdated bugs/suppressions.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 2193 matching lines @@
 }
 {
    bug_46144
    Memcheck:Leak
    ...
    fun:malloc
    fun:_ZN3WTF10fastMallocEj
    fun:_ZN3WTF13FastAllocBasenwEj
    fun:_ZN3WTF20ThreadIdentifierData10initializeEj
 }
+# This might be the replacement for the bug_46144 signature above.
+{
+   bug_46144b
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN3WTF20ThreadIdentifierData10initializeEj
+   fun:_ZN3WTF31initializeCurrentThreadInternalEPKc
+   fun:_ZN3WTFL16threadEntryPointEPv
+}
 {
    bug_46163
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
    fun:_ZN11MessageLoop11RunInternalEv
    fun:_ZN11MessageLoop10RunHandlerEv
 }
 {
    bug_46162
@@ skipping 3058 matching lines @@
 {
    bug_92396
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN27BrowserAccessibilityManager6CreateEP6NSViewRKN11webkit_glue16WebAccessibilityEP28BrowserAccessibilityDelegateP27BrowserAccessibilityFactory
    fun:_ZN27BrowserAccessibilityManager19CreateEmptyDocumentEP6NSViewN11webkit_glue16WebAccessibility5StateEP28BrowserAccessibilityDelegateP27BrowserAccessibilityFactory
    fun:_ZN60BrowserAccessibilityManagerTest_TestCreateEmptyDocument_Test8TestBodyEv
    fun:_ZN7testing8internal38HandleSehExceptionsInMethodIfSupportedINS_4TestEvEET0_PT_MS4_FS3_vEPKc
    fun:_ZN7testing8internal35HandleExceptionsInMethodIfSupportedINS_4TestEvEET0_PT_MS4_FS3_vEPKc
 }
+{
+   bug_92548
+   Memcheck:Leak
+   fun:_Znw*
+   ...
+   fun:_ZNSsC1ERKSsjj
+   fun:_ZNK4GURL15ComponentStringERKN9url_parse9ComponentE
+   fun:_ZNK4GURL4pathEv
+   fun:_ZN3net8HttpUtil14PathForRequestERK4GURL
+   fun:_ZN3net15HttpBasicStream11SendRequestERKNS_18HttpRequestHeadersEPNS_16UploadDataStreamEPNS_16HttpResponseInfoEP14CallbackRunnerI6Tuple1IiEE
+   fun:_ZN3net22HttpNetworkTransaction13DoSendRequestEv
+   fun:_ZN3net22HttpNetworkTransaction6DoLoopEi
+   fun:_ZN3net22HttpNetworkTransaction12OnIOCompleteEi
+   fun:_ZN3net22HttpNetworkTransaction13OnStreamReadyERKNS_9SSLConfigERKNS_9ProxyInfoEPNS_10HttpStreamE
+   fun:_ZN3net21HttpStreamFactoryImpl7Request13OnStreamReadyEPNS0_3JobERKNS_9SSLConfigERKNS_9ProxyInfoEPNS_10HttpStreamE
+   fun:_ZN3net21HttpStreamFactoryImpl3Job21OnStreamReadyCallbackEv
+   fun:_Z16DispatchToMethodIN3net21HttpStreamFactoryImpl3JobEMS2_FvvEEvPT_T0_RK6Tuple0
+   fun:_ZN27ScopedRunnableMethodFactoryIN3net21HttpStreamFactoryImpl3JobEE14RunnableMethodIMS2_FvvE6Tuple0E3RunEv
+   fun:_ZN4base6subtle18TaskClosureAdapter3RunEv
+}
+{
+   bug_92554
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZNSs4_Rep9_S_createEjjRKSaIcE
+   fun:_ZNSs9_M_mutateEjjj
+   fun:_ZNSs12_M_leak_hardEv
+   fun:_ZNSsixEj
+   fun:_ZN3net13TrimEndingDotERKSs
+   fun:_ZN3net20GetHostOrSpecFromURLERK4GURL
+   fun:_ZN20AsyncResourceHandler17OnResponseStartedEiP16ResourceResponse
+}
 
 #-----------------------------------------------------------------------
 # These only occur on our Google workstations
 {
    bug_todo_freeres
    Memcheck:Free
    fun:free
    fun:__libc_freeres
    fun:_vgnU_freeres
    fun:_Exit
@@ skipping 10 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
 }