Retire unused memcheck suppressions. HttpServerPropertiesManager code

tools/valgrind/memcheck/suppressions.txt

 # There are four 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 # running overnight and removing outdated bugs/suppressions.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 2294 matching lines @@
 {
    bug_273398
    Memcheck:Leak
    ...
    fun:_ZN6Pickle6ResizeEm
    fun:_ZN6PickleC1Ev
    fun:_ZN7content14ZygoteHostImpl20GetTerminationStatusEibPi
    fun:_ZN7content20ChildProcessLauncher25GetChildTerminationStatusEbPi
 }
 {
-   bug_288804
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN9__gnu_cxx13new_allocatorISt13_Rb_tree_nodeISt4pairIKN3net12HostPortPairESt3mapINS3_15SpdySettingsIdsES2_INS3_17SpdySettingsFlagsEjESt4lessIS7_ESaIS2_IKS7_S9_EEEEEE8allocateEmPKv
-   fun:_ZNSt8_Rb_treeIN3net12HostPortPairESt4pairIKS1_St3mapINS0_15SpdySettingsIdsES2_INS0_17SpdySettingsFlagsEjESt4lessIS5_ESaIS2_IKS5_S7_EEEESt10_Select1stISE_ES8_IS1_ESaISE_EE11_M_get_nodeEv
-   fun:_ZNSt8_Rb_treeIN3net12HostPortPairESt4pairIKS1_St3mapINS0_15SpdySettingsIdsES2_INS0_17SpdySettingsFlagsEjESt4lessIS5_ESaIS2_IKS5_S7_EEEESt10_Select1stISE_ES8_IS1_ESaISE_EE14_M_create_nodeERKSE_
-   fun:_ZNSt8_Rb_treeIN3net12HostPortPairESt4pairIKS1_St3mapINS0_15SpdySettingsIdsES2_INS0_17SpdySettingsFlagsEjESt4lessIS5_ESaIS2_IKS5_S7_EEEESt10_Select1stISE_ES8_IS1_ESaISE_EE13_M_clone_nodeEPKSt13_Rb_tree_nodeISE_E
-   fun:_ZNSt8_Rb_treeIN3net12HostPortPairESt4pairIKS1_St3mapINS0_15SpdySettingsIdsES2_INS0_17SpdySettingsFlagsEjESt4lessIS5_ESaIS2_IKS5_S7_EEEESt10_Select1stISE_ES8_IS1_ESaISE_EE7_M_copyEPKSt13_Rb_tree_nodeISE_EPSL_
-   fun:_ZNSt8_Rb_treeIN3net12HostPortPairESt4pairIKS1_St3mapINS0_15SpdySettingsIdsES2_INS0_17SpdySettingsFlagsEjESt4lessIS5_ESaIS2_IKS5_S7_EEEESt10_Select1stISE_ES8_IS1_ESaISE_EEaSERKSJ_
-   fun:_ZNSt3mapIN3net12HostPortPairES_INS0_15SpdySettingsIdsESt4pairINS0_17SpdySettingsFlagsEjESt4lessIS2_ESaIS3_IKS2_S5_EEES6_IS1_ESaIS3_IKS1_SB_EEEaSERKSG_
-   fun:_ZN18chrome_browser_net27HttpServerPropertiesManager24UpdatePrefsFromCacheOnIOERKN4base8CallbackIFvvEEE
-   fun:_ZN18chrome_browser_net27HttpServerPropertiesManager24UpdatePrefsFromCacheOnIOEv
-}
-{
    bug_290407
    Memcheck:Leak
    fun:calloc
    fun:_swrast_new_soft_renderbuffer
    fun:_mesa_BindRenderbufferEXT
    fun:shared_dispatch_stub_939
    fun:_ZN3gfx9GLApiBase23glBindRenderbufferEXTFnEjj
    fun:_ZN3gpu5gles216GLES2DecoderImpl18DoBindRenderbufferEjj
 }
 {
@@ skipping 1245 matching lines @@
 {
    bug_515266
    Memcheck:Uninitialized
    fun:_ZN3WTF16VectorBufferBaseIN5blink6MemberINS1_11MessagePortEEELb1ENS1_13HeapAllocatorEE6bufferEv
    fun:_ZN3WTF6VectorIN5blink6MemberINS1_11MessagePortEEELm1ENS1_13HeapAllocatorEE5traceINS1_27InlinedGlobalMarkingVisitorEEEvT_
    fun:_ZN5blink10TraceTraitIN3WTF6VectorINS_6MemberINS_11MessagePortEEELm1ENS_13HeapAllocatorEEEE5traceEPNS_7VisitorEPv
    fun:_ZN5blink13CallbackStack4Item4callEPNS_7VisitorE
    fun:_ZN5blink4Heap25popAndInvokeTraceCallbackEPNS_7VisitorE
    fun:_ZN5blink4Heap19processMarkingStackEPNS_7VisitorE
 }