Fix Valgrind errors that occurred during testing.

tools/heapcheck/suppressions.txt

Index: tools/heapcheck/suppressions.txt
diff --git a/tools/heapcheck/suppressions.txt b/tools/heapcheck/suppressions.txt
index c79152688b5a2cdb43e22012e1e81d400416d346..c8144a07e3f5f308289f27dcfca77b1295ff963e 100644
--- a/tools/heapcheck/suppressions.txt
+++ b/tools/heapcheck/suppressions.txt
@@ -1053,58 +1053,3 @@
    fun:testing::HandleExceptionsInMethodIfSupported
    fun:testing::Test::Run
 }
-{
-   bug_62943a
-   Heapcheck:Leak
-   ...
-   fun:FakeURLFetcherFactory::CreateURLFetcher
-   fun:URLFetcher::Create
-   fun:safe_browsing::ClientSideDetectionService::StartClientReportPhishingRequest
-   fun:*DispatchToMethod
-}
-{
-   bug_62943b
-   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:safe_browsing::ClientSideDetectionServiceTest_SendClientReportPhishingRequest_Test::TestBody
-}
-{
-   bug_62943c
-   Heapcheck:Leak
-   fun:__gnu_cxx::new_allocator::allocate
-   fun:std::string::_Rep::_S_create
-   fun:std::string::_Rep::_M_clone
-   fun:std::string::_Rep::_M_grab
-   fun:std::string::assign
-   fun:std::string::operator=
-   fun:URLFetcher::set_upload_data
-   fun:safe_browsing::ClientSideDetectionService::StartClientReportPhishingRequest
-}
-{
-   bug_62943d
-   Heapcheck:Leak
-   fun:__gnu_cxx::new_allocator::allocate
-   fun:std::string::_Rep::_S_create
-   fun:std::string::_Rep::_M_clone
-   fun:std::string::reserve
-   fun:bool ::InitCanonical
-   fun:GURL
-   fun:safe_browsing::ClientSideDetectionService::StartClientReportPhishingRequest
-}
-{
-   bug_62943e
-   Heapcheck:Leak
-   fun:__gnu_cxx::new_allocator::allocate
-   fun:std::string::_Rep::_S_create
-   fun:std::string::_Rep::_M_clone
-   fun:std::string::_Rep::_M_grab
-   fun:basic_string
-   fun:FakeURLFetcherFactory::SetFakeResponse
-   fun:safe_browsing::ClientSideDetectionServiceTest::SetClientReportPhishingResponse
-}