Better ActivityLog error handling

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 # running overnight and removing outdated bugs/suppressions.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 7309 matching lines @@
    fun:_ZN7content16RenderThreadImpl15OnCreateNewViewERK18ViewMsg_New_Params
 }
 {
    bug_246560
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN22TemplateURLServiceTest18AddKeywordWithDateERKSsS1_S1_S1_S1_S1_bS1_N4base4TimeES3_
    fun:_ZN49TemplateURLServiceTest_ResetNonExtensionURLs_Test8TestBodyEv
 }
 {
-   bug_246825a
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN9__gnu_cxx13new_allocatorISt13_Rb_tree_nodeIPN3sql10Connection12StatementRefEEE8allocateEmPKv
-   fun:_ZNSt8_Rb_treeIPN3sql10Connection12StatementRefES3_St9_IdentityIS3_ESt4lessIS3_ESaIS3_EE11_M_get_nodeEv
-   fun:_ZNSt8_Rb_treeIPN3sql10Connection12StatementRefES3_St9_IdentityIS3_ESt4lessIS3_ESaIS3_EE14_M_create_nodeERKS3_
-   fun:_ZNSt8_Rb_treeIPN3sql10Connection12StatementRefES3_St9_IdentityIS3_ESt4lessIS3_ESaIS3_EE10_M_insert_EPKSt18_Rb_tree_node_baseSC_RKS3_
-   fun:_ZNSt8_Rb_treeIPN3sql10Connection12StatementRefES3_St9_IdentityIS3_ESt4lessIS3_ESaIS3_EE16_M_insert_uniqueERKS3_
-   fun:_ZNSt3setIPN3sql10Connection12StatementRefESt4lessIS3_ESaIS3_EE6insertERKS3_
-   fun:_ZN3sql10Connection19StatementRefCreatedEPNS0_12StatementRefE
-   fun:_ZN3sql10Connection12StatementRefC1EPS0_P12sqlite3_stmtb
-   fun:_ZN3sql10Connection18GetUniqueStatementEPKc
-   fun:_ZN3sql10Connection18GetCachedStatementERKNS_11StatementIDEPKc
-   ...
-   fun:_ZN10extensions16ActivityDatabase4InitERKN4base8FilePathE
-}
-{
-   bug_246825b
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN9__gnu_cxx13new_allocatorISt13_Rb_tree_nodeISt4pairIKN3sql11StatementIDE13scoped_refptrINS3_10Connection12StatementRefEEEEE8allocateEmPKv
-   fun:_ZNSt8_Rb_treeIN3sql11StatementIDESt4pairIKS1_13scoped_refptrINS0_10Connection12StatementRefEEESt10_Select1stIS8_ESt4lessIS1_ESaIS8_EE11_M_get_nodeEv
-   fun:_ZNSt8_Rb_treeIN3sql11StatementIDESt4pairIKS1_13scoped_refptrINS0_10Connection12StatementRefEEESt10_Select1stIS8_ESt4lessIS1_ESaIS8_EE14_M_create_nodeERKS8_
-   fun:_ZNSt8_Rb_treeIN3sql11StatementIDESt4pairIKS1_13scoped_refptrINS0_10Connection12StatementRefEEESt10_Select1stIS8_ESt4lessIS1_ESaIS8_EE10_M_insert_EPKSt18_Rb_tree_node_baseSH_RKS8_
-   ...
-   fun:_ZNSt8_Rb_treeIN3sql11StatementIDESt4pairIKS1_13scoped_refptrINS0_10Connection12StatementRefEEESt10_Select1stIS8_ESt4lessIS1_ESaIS8_EE17_M_insert_unique_ESt23_Rb_tree_const_iteratorIS8_ERKS8_
-   fun:_ZNSt3mapIN3sql11StatementIDE13scoped_refptrINS0_10Connection12StatementRefEESt4lessIS1_ESaISt4pairIKS1_S5_EEE6insertESt17_Rb_tree_iteratorISA_ERKSA_
-   fun:_ZNSt3mapIN3sql11StatementIDE13scoped_refptrINS0_10Connection12StatementRefEESt4lessIS1_ESaISt4pairIKS1_S5_EEEixERS9_
-   fun:_ZN3sql10Connection18GetCachedStatementERKNS_11StatementIDEPKc
-   ...
-   fun:_ZN10extensions16ActivityDatabase4InitERKN4base8FilePathE
-}
-{
-   bug_246825c
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN3sql10Connection18GetUniqueStatementEPKc
-   fun:_ZN3sql10Connection18GetCachedStatementERKNS_11StatementIDEPKc
-   ...
-   fun:_ZN10extensions16ActivityDatabase4InitERKN4base8FilePathE
-}
-{
-   bug_246825d
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN4base4BindIMN10extensions16ActivityDatabaseEFvvENS_8internal17UnretainedWrapper*
-   fun:_ZN4base22BaseTimerMethodPointerIN10extensions16ActivityDatabaseELb1EE5StartERKN15tracked_objects8LocationENS_9TimeDelta*
-   fun:_ZN10extensions16ActivityDatabase4InitERKN4base8FilePathE
-}
-{
    bug_247525a
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7fileapi25SandboxMountPointProviderC1EPN5quota17QuotaManagerProxyEPN4base19SequencedTaskRunnerERKNS4_8FilePathERKNS_17FileSystemOptionsEPNS1_20SpecialStoragePolicyE
    fun:_ZN7fileapi17FileSystemContextC1E10scoped_ptrINS_21FileSystemTaskRunnersEN4base14DefaultDeleterIS2_EEEPNS_19ExternalMountPointsEPN5quota20SpecialStoragePolicyEPNS9_17QuotaManagerProxyE12ScopedVectorINS_28FileSystemMountPointProviderEERKNS3_8FilePathERKNS_17FileSystemOptionsE
    fun:_ZN7content23CreateFileSystemContextERKN4base8FilePathEbPN7fileapi19ExternalMountPointsEPN5quota20SpecialStoragePolicyEPNS7_17QuotaManagerProxyE
    fun:_ZN7content20StoragePartitionImpl6CreateEPNS_14BrowserContextEbRKN4base8FilePathE
    fun:_ZN7content23StoragePartitionImplMap3GetERKSsS2_b
    fun:_ZN7content12_GLOBAL__N_129GetStoragePartitionFromConfigEPNS_14BrowserContextERKSsS4_b
    fun:_ZN7content14BrowserContext19GetStoragePartitionEPS0_PNS_12SiteInstanceE
@@ skipping 22 matching lines @@
    fun:_ZN7content12_GLOBAL__N_129GetStoragePartitionFromConfigEPNS_14BrowserContextERKSsS4_b
    fun:_ZN7content14BrowserContext19GetStoragePartitionEPS0_PNS_12SiteInstanceE
    fun:_ZN7content24NavigationControllerImpl26GetSessionStorageNamespaceEPNS_12SiteInstanceE
    fun:_ZN7content21RenderViewHostManager4InitEPNS_14BrowserContextEPNS_12SiteInstanceEii
    fun:_ZN7content15WebContentsImpl4InitERKNS_11WebContents12CreateParamsE
    fun:_ZN7content15TestWebContents6CreateEPNS_14BrowserContextEPNS_12SiteInstanceE
    fun:_ZN7content25RenderViewHostTestHarness21CreateTestWebContentsEv
    fun:_ZN7content25RenderViewHostTestHarness5SetUpEv
    fun:_ZN31ChromeRenderViewHostTestHarness5SetUpEv
 }