Valgrind: Widen a few layout test suppressions.

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
===================================================================
--- tools/valgrind/memcheck/suppressions.txt	(revision 287572)
+++ tools/valgrind/memcheck/suppressions.txt	(working copy)
@@ -6030,33 +6030,26 @@
    fun:_ZN5blink11RenderLayer7hitTestERKNS_14HitTestRequestERKNS_15HitTestLocationERNS_13HitTestResultE
    fun:_ZN5blink10RenderView7hitTestERKNS_14HitTestRequestERKNS_15HitTestLocationERNS_13HitTestResultE
    fun:_ZN5blink10RenderView7hitTestERKNS_14HitTestRequestERNS_13HitTestResultE
-   fun:_ZN5blink8Document17prepareMouseEventERKNS_14HitTestRequestERKNS_11LayoutPointERKNS_18PlatformMouseEventE
-   fun:_ZN5blink12EventHandler17prepareMouseEventERKNS_14HitTestRequestERKNS_18PlatformMouseEventE
-   fun:_ZN5blink12EventHandler26getSubFrameForGestureEventERKNS_8IntPointERKNS_20PlatformGestureEventE
+   ...
    fun:_ZN5blink12EventHandler18handleGestureEventERKNS_20PlatformGestureEventE
    fun:_ZN5blink11WebViewImpl18handleGestureEventERKNS_15WebGestureEventE
-   fun:_ZN5blink18PageWidgetDelegate16handleInputEventEPN7blink4PageERNS_22PageWidgetEventHandlerERKNS_13WebInputEventE
-   fun:_ZN5blink11WebViewImpl16handleInputEventERKNS_13WebInputEventE
 }
 {
    bug_385396b
    Memcheck:Uninitialized
-   fun:_ZN5blink10LayoutUnit8setValueEi
-   fun:_ZN5blink10LayoutUnitC1Ei
-   fun:_ZN5blink11LayoutPointC1ERKNS_8IntPointE
    ...
+   fun:_ZN5blink11LayoutPointC*ERKNS_8IntPointE
+   ...
    fun:_ZN5blink12EventHandler18handleGestureEventERKNS_20PlatformGestureEventE
    fun:_ZN5blink11WebViewImpl18handleGestureEventERKNS_15WebGestureEventE
-   fun:_ZN5blink18PageWidgetDelegate16handleInputEventEPN7blink4PageERNS_22PageWidgetEventHandlerERKNS_13WebInputEventE
 }
 {
    bug_385396c
    Memcheck:Uninitialized
-   fun:_ZNK7blink7IntRect8containsEii
+   fun:_ZNK5blink7IntRect8containsEii
    ...
    fun:_ZN5blink12EventHandler18handleGestureEventERKNS_20PlatformGestureEventE
    fun:_ZN5blink11WebViewImpl18handleGestureEventERKNS_15WebGestureEventE
-   fun:_ZN5blink18PageWidgetDelegate16handleInputEventEPN7blink4PageERNS_22PageWidgetEventHandlerERKNS_13WebInputEventE
 }
 {
    bug_385396d