Update suppressions

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 # running overnight and removing outdated bugs/suppressions.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 4327 matching lines @@
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7WebCore23v8StringToWebCoreStringIN3WTF6StringEEET_N2v86HandleINS4_6StringEEENS_12ExternalModeE
    fun:_ZN7WebCore15V8ParameterBase8toStringIN3WTF6StringEEET_v
    fun:_ZN7WebCore15V8ParameterBasecvN3WTF6StringEEv
 }
 {
    bug_108628
    Memcheck:Leak
    fun:_Znw*
-   fun:_ZN7WebCore23v8StringToWebCoreStringIN3WTF6StringEEET_N2v86HandleINS4_6StringEEENS_12ExternalModeE
-   fun:_ZN7WebCore23v8StringToWebCoreStringEN2v86HandleINS0_6StringEEE
-   fun:_ZN7WebCore22v8ValueToWebCoreStringEN2v86HandleINS0_5ValueEEE
-   fun:_ZN7WebCore28toWebCoreStringWithNullCheckEN2v86HandleINS0_5ValueEEE
-   fun:_ZN7WebCore16V8XMLHttpRequest12sendCallbackERKN2v89ArgumentsE
+   fun:_ZN7WebCore23v8StringToWebCoreStringIN3WTF12AtomicStringEEET_N2v86HandleINS4_6StringEEENS_12ExternalModeE
+   fun:_ZN7WebCore16V8StringResourceILNS_20V8StringResourceModeE0EE8toStringIN3WTF12AtomicStringEEET_v
+   fun:_ZN7WebCore16V8StringResourceILNS_20V8StringResourceModeE0EEcvN3WTF12AtomicStringEEv
+   fun:_ZN7WebCore24XMLHttpRequestV8InternalL2*HeaderCallbackERKN2v89ArgumentsE
    fun:_ZN2v88internalL19HandleApiCallHelperILb0EEEPNS0_11MaybeObjectENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
    fun:_ZN2v88internalL21Builtin_HandleApiCallENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
 }
 {
    bug_109470
    Memcheck:Uninitialized
    ...
    fun:_ZN7WebCore16CSSStyleSelector24applyMatchedDeclarationsERKNS0_11MatchResultE
    fun:_ZN7WebCore16CSSStyleSelector15styleForElementEPNS_7ElementEPNS_11RenderStyleEbb
    fun:_ZN7WebCore7Element16styleForRendererEv
@@ skipping 1759 matching lines @@
    fun:_ZN2v88internal6LoadIC4LoadENS0_16InlineCacheStateENS0_6HandleINS0_6ObjectEEENS3_INS0_6StringEEE
 }
 {
    # storage/indexeddb/pending-activity-workers.html
    # storage/indexeddb/index-basics-workers.html
    bug_162829_f
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7WebCore11ScriptState10forContextEN2v85LocalINS1_7ContextEEE
    fun:_ZN7WebCore11ScriptState7currentEv
-   fun:_ZN7WebCore24IDBObjectStoreV8InternalL11putCallbackERKN2v89ArgumentsE
+   fun:_ZN7WebCore24IDBObjectStoreV8InternalL11addCallbackERKN2v89ArgumentsE
    fun:_ZN2v88internalL19HandleApiCallHelperILb0EEEPNS0_11MaybeObjectENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE
 }
 {
    # storage/indexeddb/pending-activity-workers.html
    # storage/indexeddb/objectstore-basics-workers.html
    bug_162829_g
    Memcheck:Leak
    fun:malloc
    fun:_ZN3WTF10fastMallocEm
    fun:_ZN3WTF10RefCountedIN7WebCore30IDBTransactionBackendInterfaceEEnwEm
@@ skipping 302 matching lines @@
 }
 {
    bug_167481b
    Memcheck:Uninitialized
    ...
    fun:encode_frame_to_data_rate
    fun:vp8_get_compressed_data
    fun:vp8e_encode
    fun:vpx_codec_encode
 }