Removed memory leak suppression for crbug.com/381584.

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 # running overnight and removing outdated bugs/suppressions.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 5805 matching lines @@
    fun:_ZNK7blink13RenderSVGPath11strokeShapeEPNS_15GraphicsContextE
    fun:_ZN5blink27RenderSVGResourceSolidColor17postApplyResourceEPNS_12RenderObjectERPNS_15GraphicsContextEtPKNS_4PathEPKNS_14RenderSVGShapeE
    fun:_ZN5blink14RenderSVGShape11strokeShapeEPNS_11RenderStyleEPNS_15GraphicsContextE
    fun:_ZN5blink14RenderSVGShape5paintERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink9RenderBox5paintERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink13RenderSVGRoot13paintReplacedERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink14RenderReplaced5paintERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock18paintAsInlineBlockEPNS_12RenderObjectERNS_9PaintInfoERKNS_11LayoutPointE
 }
 {
-   bug_381584
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN4base8internal20PostTaskAndReplyImpl16PostTaskAndReplyERKN15tracked_objects8LocationERKNS_8CallbackIFvvEEESA_
-   fun:_ZN4base10TaskRunner16PostTaskAndReplyERKN15tracked_objects8LocationERKNS_8CallbackIFvvEEES9_
-   fun:_ZN4base26PostTaskAndReplyWithResultI13scoped_refptrIN*KeyEES4_EEbPNS_10TaskRunnerERKN15tracked_objects8LocationERKNS_8CallbackIFT_vEEERKNSB_IFvT0_EEE
-   fun:_ZN8chromeos23SessionManagerOperation*Ensure*KeyERKN4base8CallbackIFvvEEE
-   fun:_ZN8chromeos23SessionManagerOperation12StartLoadingEv
-   fun:_ZN8chromeos21LoadSettingsOperation3RunEv
-   fun:_ZN8chromeos23SessionManagerOperation5StartEPNS_20SessionManagerClientE13scoped_refptrIN*
-   fun:_ZN8chromeos21DeviceSettingsService18StartNextOperationEv
-   fun:_ZN8chromeos21DeviceSettingsService7EnqueueEPNS_23SessionManagerOperationE
-   fun:_ZN8chromeos21DeviceSettingsService11EnqueueLoadEb
-   fun:_ZN8chromeos21DeviceSettingsService4LoadEv
-}
-{
    bug_385381
    Memcheck:Unaddressable
    fun:_ZN5blink23FrameLoaderStateMachine9advanceToENS0_5StateE
    fun:_ZN5blink11FrameLoader4initEv
    fun:_ZN5blink10LocalFrame4initEv
    fun:_ZN5blink17WebLocalFrameImpl22initializeAsChildFrameEPN7blink9FrameHostEPNS1_10FrameOwnerERKN3WTF12AtomicStringES9_
    fun:_ZN5blink17WebLocalFrameImpl16createChildFrameERKN7blink16FrameLoadRequestEPNS1_21HTMLFrameOwnerElementE
 }
 {
    bug_385396a
@@ skipping 363 matching lines @@
    fun:_ZN5blink11RenderBlock10paintChildEPNS_9RenderBoxERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock13paintChildrenERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock13paintContentsERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock11paintObjectERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock5paintERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock10paintChildEPNS_9RenderBoxERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock13paintChildrenERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock13paintContentsERNS_9PaintInfoERKNS_11LayoutPointE
    fun:_ZN5blink11RenderBlock11paintObjectERNS_9PaintInfoERKNS_11LayoutPointE
 }