Add Valgrind suppressions for CreateFullscreenWidget.

BUG=52900
TEST=Valgrind Linux gets greener.
Review URL: http://codereview.chromium.org/3192009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57258 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -4188,6 +4188,17 @@
    fun:_ZN17ExtensionsService18UninstallExtensionERKSsb
    fun:_ZN18AutomationProvider18UninstallExtensionEiPb
 }
+{
+   bug_52900
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN20RenderWidgetHostView19CreateViewForWidgetEP16RenderWidgetHost
+   fun:_ZN32RenderViewHostDelegateViewHelper25CreateNewFullscreenWidgetEiN6WebKit12WebPopupTypeEP17RenderProcessHost
+   fun:_ZN15TabContentsView33CreateNewFullscreenWidgetInternalEiN6WebKit12WebPopupTypeE
+   fun:_ZN15TabContentsView25CreateNewFullscreenWidgetEiN6WebKit12WebPopupTypeE
+   fun:_ZN14RenderViewHost25CreateNewFullscreenWidgetEiN6WebKit12WebPopupTypeE
+   fun:_ZN46RenderViewHostTest_CreateFullscreenWidget_Test8TestBodyEv
+}
 {
    bug_52957
    Memcheck:Addr4