Fix memory leaks in AsynchronousPolicyProvider.

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 # running overnight and removing outdated bugs/suppressions.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 3452 matching lines @@
 {
    bug_65988
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN8remoting8protocol24BufferedSocketWriterBase5WriteE13scoped_refptrIN3net16IOBufferWithSizeEEP4Task
    fun:_ZN8remoting8protocol10RtcpWriter10SendReportERKNS0_18RtcpReceiverReportE
    fun:_ZN8remoting8protocol14RtpVideoReader20SendReceiverReportIfEv
    fun:_ZN8remoting8protocol14RtpVideoReader18RebuildVideoPacketESt15_Deque_iteratorINS1_17PacketsQueueEntryERS3_PS3_ES6_
    fun:_ZN8remoting8protocol14RtpVideoReader15CheckFullPacketESt15_Deque_iteratorINS1_17PacketsQueueEntryERS3_PS3_E
 }
-{
-   bug_66054_a
-   Memcheck:Leak
-   fun:_Znw*
-   ...
-   fun:_ZNK6policy36CreateSequencedTestDictionaryActionPIPiE10gmock_ImplIFP15DictionaryValuevEE17gmock_PerformImplIN7testing8internal12ExcessiveArgESB_SB_SB_SB_SB_SB_SB_SB_SB_EES5_RKNSt3tr15tupleINSC_10_NullClassESE_SE_SE_SE_SE_SE_SE_SE_SE_EET_T0_T1_T2_T3_T4_T5_T6_T7_T8_
-   fun:_ZN7testing8internal12ActionHelperIP15DictionaryValueN6policy36CreateSequencedTestDictionaryActionPIPiE10gmock_ImplIFS3_vEEEE7PerformEPSA_RKNSt3tr15tupleINSD_10_NullClassESF_SF_SF_SF_SF_SF_SF_SF_SF_EE
-   fun:_ZN6policy36CreateSequencedTestDictionaryActionPIPiE10gmock_ImplIFP15DictionaryValuevEE7PerformERKNSt3tr15tupleINS8_10_NullClassESA_SA_SA_SA_SA_SA_SA_SA_SA_EE
-   fun:_ZNK7testing6ActionIFP15DictionaryValuevEE7PerformERKNSt3tr15tupleINS5_10_NullClassES7_S7_S7_S7_S7_S7_S7_S7_S7_EE
-   fun:_ZN7testing8internal18FunctionMockerBaseIFP15DictionaryValuevEE10InvokeWithERKNSt3tr15tupleINS6_10_NullClassES8_S8_S8_S8_S8_S8_S8_S8_S8_EE
-   fun:_ZN7testing8internal14FunctionMockerIFP15DictionaryValuevEE6InvokeEv
-   fun:_ZN6policy20ProviderDelegateMock4LoadEv
-   fun:_ZN6policy24AsynchronousPolicyLoader6ReloadEv
-   fun:_ZN6policy68AsynchronousPolicyLoaderTest_ProviderNotificationOnPolicyChange_Test8TestBodyEv
-}
-{
-   bug_66054_b
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN6policy47AsynchronousPolicyTestBase_ProviderRefresh_Test8TestBodyEv
-}