Fix memory leak in PrerenderInterceptorTest...

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 # running overnight and removing outdated bugs/suppressions.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 1092 matching lines @@
    bug_65988
    Heapcheck:Leak
    ...
    fun:remoting::protocol::RtcpWriter::SendReport
    fun:remoting::protocol::RtpVideoReader::SendReceiverReportIf
    fun:remoting::protocol::RtpVideoReader::RebuildVideoPacket
    fun:remoting::protocol::RtpVideoReader::CheckFullPacket
    fun:remoting::protocol::RtpVideoReader::OnRtpPacket
 }
 {
-   bug_65993
-   Heapcheck:Leak
-   ...
-   fun:PrerenderInterceptorTest::MakeTestUrl
-}
-{
    bug_66054_a
    Heapcheck:Leak
    ...
    fun:policy::CreateSequencedTestDictionaryActionP::gmock_Impl::gmock_PerformImpl
    fun:testing::internal::ActionHelper::Perform
    fun:policy::CreateSequencedTestDictionaryActionP::gmock_Impl::Perform
    fun:testing::Action::Perform
    fun:testing::internal::FunctionMockerBase::InvokeWith
    fun:testing::internal::FunctionMocker::Invoke
    fun:policy::ProviderDelegateMock::Load
    fun:policy::AsynchronousPolicyLoader::Reload
    fun:policy::AsynchronousPolicyLoaderTest_ProviderNotificationOnPolicyChange_Test::TestBody
 }
 {
    bug_66054_b
    Heapcheck:Leak
    fun:policy::AsynchronousPolicyTestBase_ProviderRefresh_Test::TestBody
 }
 {
    bug_66227
    Heapcheck:Leak
    ...
    fun:MalwareDetailsTest_*
 }