Relaxing suppression for ExtensionPrefStoreTest

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 # running overnight and removing outdated bugs/suppressions.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 3570 matching lines @@
    fun:_ZN3net66_GLOBAL__N_net_spdy_spdy_http_stream_unittest.cc_9D292295_6F30AFB219SessionDependenciesC1Ev
    fun:_ZN3net66_GLOBAL__N_net_spdy_spdy_http_stream_unittest.cc_9D292295_6F30AFB218SpdyHttpStreamTestC2Ev
    fun:_ZN3net66_GLOBAL__N_net_spdy_spdy_http_stream_unittest.cc_9D292295_6F30AFB235SpdyHttpStreamTest_SendRequest_TestC1Ev
    fun:_ZN7testing8internal15TestFactoryImplIN3net66_GLOBAL__N_net_spdy_spdy_http_stream_unittest.cc_9D292295_6F30AFB235SpdyHttpStreamTest_SendRequest_TestEE10CreateTestEv
 }
 {
    bug_48980_a
    Memcheck:Leak
    ...
    fun:_ZN18ExtensionPrefStore20InstallExtensionPrefESsPKwP5Value
-   fun:_ZN56ExtensionPrefStoreTest_*_Test8TestBodyEv
+   fun:_ZN*ExtensionPrefStoreTest_*_Test8TestBodyEv
 }
 {
    bug_48980_b
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN5Value17CreateStringValueERKSs
    fun:_ZN*ExtensionPrefStoreTest_*_Test8TestBodyEv
 }
 {
    bug_48980_c
@@ skipping 12 matching lines @@
 }
 {
    bug_49086
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN26TemplateURLPrepopulateData27MakePrepopulatedTemplateURLEPKwS1_S1_PKcS1_S3_i
    fun:_ZN26TemplateURLPrepopulateData32GetPrepopulatedTemplatefromPrefsEP11PrefServicePSt6vectorIP11TemplateURLSaIS4_EE
    fun:_ZN26TemplateURLPrepopulateData22GetPrepopulatedEnginesEP11PrefServicePSt6vectorIP11TemplateURLSaIS4_EEPj
    fun:_ZN54TemplateURLPrepopulateDataTest_ProvidersFromPrefs_Test8TestBodyEv
 }