Suppress leaks of WebDataService.

tools/heapcheck/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 # running overnight and removing outdated bugs/suppressions.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 1892 matching lines @@
    Heapcheck:Leak
    fun:Pickle::Resize
    fun:Pickle::Pickle
    fun:*Message
    fun:__gnu_cxx::new_allocator::construct
    fun:std::vector::push_back
    fun:IPC::TestSink::OnMessageReceived
    fun:IPC::TestSink::Send
    fun:NaClIPCAdapter::SendMessageOnIOThread
 }
+{
+   bug_128145
+   Heapcheck:Leak
+   ...
+   fun:BuildWebDataService
+   fun:RefcountedProfileKeyedServiceFactory::GetServiceForProfile
+   fun:RefcountedProfileKeyedServiceFactory::SetTestingFactoryAndUse
+   fun:TestingProfile::CreateWebDataService
+}