Heapcheck leak in SyncUIUtilTest.ConstructAboutInformationWithUnrecoverableErrorTest

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 # running overnight and removing outdated bugs/suppressions.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 1184 matching lines @@
    fun:ui::ElideUrl
    fun:ui::::RunTest
    fun:ui::TextEliderTest_TestGeneralEliding_Test::TestBody
 }
 {
    bug_70782
    Heapcheck:Leak
    fun:SyncSetupWizard
    fun:ProfileSyncService
 }
+{
+   bug_71070
+   Heapcheck:Leak
+   fun:__gnu_cxx::new_allocator::allocate
+   fun:std::string::_Rep::_S_create
+   fun:std::string::_S_construct
+   fun:std::string::_S_construct_aux
+   fun:std::string::_S_construct
+   fun:basic_string
+   fun:SyncResourcesSource
+   fun:SyncSetupWizard
+   fun:ProfileSyncService
+   fun:ProfileSyncServiceMock
+   fun:NiceMock
+   fun:SyncUIUtilTest_ConstructAboutInformationWithUnrecoverableErrorTest_Test::TestBody
+}