More valgrind suppressions.

tools/valgrind/memcheck/suppressions_mac.txt

 # There are three kinds of suppressions in this file:
 # 1. Third party stuff we have no control over.
 #
 # 2. Intentional unit test errors, 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.
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 193 matching lines @@
 }
 {
    # Invalid read
    bug_20508b
    Memcheck:Addr4
    fun:_eATSFontGetGlyphIDsForGlyphNames
    fun:ATSFontGetGlyphIDsForGlyphNames
    fun:ats_font_get_glyphs_for_glyph_names
    fun:get_glyphs_for_glyph_names
 }
+{
+   bug_20807
+   Memcheck:Addr4
+   fun:_ZNK12DynamicArray14getFirstNumberEv
+   fun:CCFindArraySegment
+   fun:CCArrayGetEntryPtr
+   fun:_ZNK29CLocalRefToSharedStorageEntry13GetLoadedDataEl
+   fun:_ZN17CIconStorageEntry7GetDataEl
+   fun:_ISGetIconDataPointer
+   fun:_Z20CheckIfDataAvailablemPv
+   fun:_ISGoThruImageStorages
+   fun:IsDataAvailableInImageRef
+   fun:IsDataAvailableInIconRef
+}
 
 
 # 2. Intentional unit test errors, stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing.
 {
    # NSObject pointers in a static std::map; we do technically leak them, but
    # only on shutdown, so it's not worth fixing.
    static_theme_cache
    Memcheck:Leak
    fun:calloc
@@ skipping 350 matching lines @@
    fun:sqlite3PagerRollback
    fun:sqlite3BtreeRollback
    fun:sqlite3RollbackAll
    fun:sqlite3VdbeHalt
    fun:sqlite3VdbeExec
    fun:sqlite3Step
    fun:sqlite3_step
    fun:sqlite3_exec
    fun:_ZN14SQLTransaction10EndCommandEPKc
 }
+{
+   bug_20808
+   Memcheck:Addr8
+   ...
+   fun:CGContextDrawLayerAtPoint
+   fun:-[RenderWidgetHostViewCocoa drawRect:]
+}
+{
+   bug_20814
+   Memcheck:Addr4
+   fun:_ZN10CLVContextC2EPKvm
+   fun:_Z26getAllCarbonLazyValues2000v
+   fun:CLVVisitValuesForKey
+   fun:INIT_ResourceManager
+   fun:CurResFile
+   fun:_ZN5NPAPI12_GLOBAL__N_124ScopedBundleResourceFileC1EP10__CFBundle
+   fun:_ZN5NPAPI12_GLOBAL__N_117ReadSTRPluginInfoERK8FilePathP10__CFBundleP13WebPluginInfo
+   fun:_ZN5NPAPI9PluginLib17ReadWebPluginInfoERK8FilePathP13WebPluginInfo
+}