Widen leak suppression for Extension::Create() to cover rb_tree nodes in Manifest.

TBR=jstritar@chromium.org
BUG=106331
TEST=valgrind bots go greener

Review URL: http://codereview.chromium.org/8797002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112943 0039d316-1c4b-4281-b951-d872f2087c98

tools/heapcheck/suppressions.txt

@@ -1786,8 +1786,29 @@
    fun:AccessibilityEventRouterViewsTest_TestFocusNotification_Test::TestBody
 }
 {
-   bug_106331
+   bug_106331_a
    Heapcheck:Leak
    ...
    fun:Extension::Create
 }
+{
+   bug_106331_b
+   Heapcheck:Leak
+   ...
+   fun:ExtensionUnpacker::ReadManifest
+   fun:ExtensionUnpacker::Run
+}
+{
+   bug_106331_c
+   Heapcheck:Leak
+   ...
+   fun:JSONFileValueSerializer::Deserialize
+   fun:::FileThreadDeserializer::DoReading
+   fun:JsonPrefStore::ReadPrefs
+   fun:PrefService::InitFromStorage
+   fun:PrefService*
+   fun:PrefServiceMockBuilder::Create
+   fun:ExtensionServiceTestBase::InitializeExtensionService
+   fun:ExtensionServiceTestBase::InitializeInstalledExtensionService
+   fun:ExtensionServiceTest_UninstallingNotLoadedExtension_Test::TestBody
+}

tools/valgrind/memcheck/suppressions.txt

@@ -5332,7 +5332,7 @@
 {
    bug_106331
    Memcheck:Leak
-   fun:_Znw*
+   ...
    fun:_ZN9Extension6CreateERK8FilePathNS_8LocationERKN4base15DictionaryValueEiPSs
 }