Another Uninitialized suppression case for WidthIterator.

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 # running overnight and removing outdated bugs/suppressions.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 4748 matching lines @@
 }
 {
    bug_101755_b
    Memcheck:Uninitialized
    ...
    fun:_ZN7WebCore13WidthIterator*
    fun:_ZNK7WebCore4Font26selectionRectForSimpleTextERKNS_7TextRunERKNS_10FloatPointEiii
    fun:_ZNK7WebCore4Font20selectionRectForTextERKNS_7TextRunERKNS_10FloatPointEiii
 }
 {
+   bug_101755_b1
+   Memcheck:Uninitialized
+   fun:_ZN7WebCore13WidthIterator*
+   fun:_ZNK7WebCore4Font23floatWidthForSimpleTextERKNS_7TextRunEPNS_11GlyphBufferEPN3WTF7HashSetIPKNS_14SimpleFontDataENS6_7PtrHashISA_EENS6_10HashTraitsISA_EEEEPNS_13GlyphOverflowE
+   fun:_ZNK7WebCore4Font30offsetForPositionForSimpleTextERKNS_7TextRunEfb
+   fun:_ZNK7WebCore4Font17offsetForPositionERKNS_7TextRunEfb
+}
+{
    bug_101755_c
    Memcheck:Uninitialized
    fun:_ZN7WebCore21ComplexTextController*
    ...
    fun:_ZNK7WebCore4Font15drawComplexTextEPNS_15GraphicsContextERKNS_7TextRunERKNS_10FloatPointEii
    fun:_ZNK7WebCore4Font8drawTextEPNS_15GraphicsContextERKNS_7TextRunERKNS_10FloatPointEii
    fun:_ZN7WebCore15GraphicsContext8drawTextERKNS_4FontERKNS_7TextRunERKNS_10FloatPointEii
    fun:_ZN7WebCoreL20paintTextWithShadowsEPNS_15GraphicsContextERKNS_4FontERKNS_7TextRunERKN3WTF12AtomicStringEiiiiRKNS_10FloatPointERKNS_9FloatRectEPKNS_10ShadowDataEbb
    fun:_ZN7WebCore13InlineTextBox5paintERNS_9PaintInfoERKNS_8IntPointEii
    fun:_ZN7WebCore13InlineFlowBox5paintERNS_9PaintInfoERKNS_8IntPointEii
@@ skipping 654 matching lines @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }