Consolidate the suppressions for the _dlerror_run leak in dlsym.

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 # running overnight and removing outdated bugs/suppressions.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 171 matching lines @@
    fun:FcFontSort
 }
 {
    dlopen invalid read, probably a bug in glibc.  TODO(dkegel): file glibc bug
    Memcheck:Uninitialized
    ...
    fun:dlopen@@GLIBC_2.1
    fun:PR_LoadLibraryWithFlags
 }
 {
-   dlopen leak on error. TODO(timurrrr): file a bug
+   dlopen leak on error. See http://sourceware.org/bugzilla/show_bug.cgi?id=12878.
    Memcheck:Leak
    fun:calloc
    fun:_dlerror_run
    fun:dlopen@@GLIBC_2.1
 }
 {
    glibc leak.  See also http://sources.redhat.com/bugzilla/show_bug.cgi?id=2451
    Memcheck:Leak
    fun:malloc
    fun:_dl_map_object_from_fd
@@ skipping 228 matching lines @@
 {
    bug_51328b (Third Party)
    Memcheck:Leak
    ...
    fun:SEC_PKCS7DecoderStart
    ...
    fun:SEC_ASN1DecoderUpdate_Util
    fun:SEC_PKCS12DecoderUpdate
 }
 {
+   bug_51770 (Third Party)
+   Memcheck:Leak
+   fun:calloc
+   fun:_dlerror_run
+   fun:dlsym
+}
+{
    bug_58730_strlen_addr8 (Third Party)
    Memcheck:Unaddressable
    fun:__strlen_sse2
 }
 {
    bug_58730_strlen_cond (Third Party)
    Memcheck:Uninitialized
    fun:__strlen_sse2
 }
 {
@@ skipping 1519 matching lines @@
    fun:_ZN7WebCore13TextRunWalker14widthOfFullRunEv
 }
 {
    bug_51590c
    Memcheck:Unaddressable
    ...
    fun:_ZN7WebCore13TextRunWalker13nextScriptRunEv
    fun:_ZN7WebCore13TextRunWalker14widthOfFullRunEv
 }
 {
-   bug_51770
-   Memcheck:Leak
-   fun:calloc
-   fun:_dlerror_run
-   fun:dlsym
-   fun:localtime_r
-}
-{
    bug_51679
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN23ExtensionMessageService16AddEventListenerERKSsi
    fun:_ZN24BrowserRenderProcessHost22OnExtensionAddListenerERKSs
 }
 {
    bug_52831
    Memcheck:Leak
@@ skipping 372 matching lines @@
    fun:_mesa_texstore_rgba8888
    fun:_mesa_texstore
    fun:_mesa_store_teximage2d
    fun:_mesa_TexImage2D
    fun:glTexImage2D
    fun:_ZN6WebKit31WebGraphicsContext3DDefaultImpl10texImage2DEjjjjjjjjPKv
    fun:_ZN7WebCore25GraphicsContext3DInternal10texImage2DEjjjjjjjjPv
    fun:_ZN7WebCore17GraphicsContext3D10texImage2DEjjjjjjjjPv
 }
 {
-   bug_60958
-   Memcheck:Leak
-   fun:calloc
-   fun:_dlerror_run
-   fun:dlsym
-   fun:_Z*26InitLibcLocaltimeFunctionsv
-   fun:pthread_once
-   fun:_ZNK4base4Time7ExplodeEbPNS0_8ExplodedE
-   fun:_ZNK4base4Time12LocalExplodeEPNS0_8ExplodedE
-   fun:_ZNK4base4Time13LocalMidnightEv
-   fun:_ZN7history20VisitSegmentDatabase17QuerySegmentUsageEN4base4TimeEiPSt6vectorIP13PageUsageDataSaIS5_EE
-}
-{
    bug_69073
    Memcheck:Leak
    fun:malloc
    ...
    fun:sqlite3*
    ...
    fun:find_objects
    fun:find_objects_by_template
    fun:nssToken_FindCertificatesBySubject
    fun:nssTrustDomain_FindCertificatesBySubject
@@ skipping 3392 matching lines @@
    fun:malloc
    fun:strdup
    ...
    fun:_ZN34CopyTextureCHROMIUMResourceManager10InitializeEv
    fun:_ZN3gpu5gles216GLES2DecoderImpl10InitializeERK13scoped_refptrIN3gfx9GLSurfaceEERKS2_INS3_9GLContextEERKNS3_4SizeERKNS0_18DisallowedFeaturesEPKcRKSt6vectorIiSaIiEE
    fun:_ZN6webkit3gpu18GLInProcessContext10InitializeERKN3gfx4SizeEPS1_PKcPKiNS2_13GpuPreferenceE
    fun:_ZN6webkit3gpu18GLInProcessContext22CreateOffscreenContextEPS1_RKN3gfx4SizeES2_PKcPKiNS3_13GpuPreferenceE
    fun:_ZN6webkit3gpu46WebGraphicsContext3DInProcessCommandBufferImpl10InitializeEN6WebKit20WebGraphicsContext3D10AttributesEPS3_
 }
 {
-   bug_124494
-   Memcheck:Leak
-   fun:calloc
-   fun:_dlerror_run
-   fun:dlsym
-   fun:_ZN29RuntimeLibNSSFunctionPointersC1Ev
-   fun:_ZN22DefaultSingletonTraitsI29RuntimeLibNSSFunctionPointersE3NewEv
-   fun:_ZN9SingletonI29RuntimeLibNSSFunctionPointers22DefaultSingletonTraitsIS0_ES0_E3getEv
-   fun:_ZN29RuntimeLibNSSFunctionPointers11GetInstanceEv
-   fun:_ZL43GetCacheOCSPResponseFromSideChannelFunctionv
-   fun:_ZL23IsOCSPStaplingSupportedv
-}
-{
    bug_124496
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN8notifier26ProxyResolvingClientSocket23ProcessProxyResolveDoneEi
 }
 {
    bug_124500
    Memcheck:Leak
    fun:_Znw*
@@ skipping 39 matching lines @@
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }