Add suppression for leak in gfx::CanvasSkia::SizeStringInt

tools/heapcheck/suppressions.txt

 # There are three 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 # running overnight and removing outdated bugs/suppressions.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 1191 matching lines @@
    fun:Singleton::get
    fun:PluginService::GetInstance
    fun:ResourceDispatcherHost::BeginRequest
    fun:ResourceDispatcherHost::OnRequestResource
    fun:IPC::MessageWithTuple::Dispatch
    fun:ResourceDispatcherHost::OnMessageReceived
    fun:ResourceDispatcherHostTest::MakeTestRequest
    fun:ResourceDispatcherHostTest::MakeTestRequest
    fun:ResourceDispatcherHostTest_TestMany_Test::TestBody
 }
+{
+   bug_70327
+   Heapcheck:Leak
+   fun:g_malloc
+   fun:gfx::CanvasSkia::SizeStringInt
+   fun:gfx::PlatformFontGtk::GetStringWidth
+   fun:gfx::Font::GetStringWidth
+   fun:ui::ElideUrl
+   fun:ui::::RunTest
+   fun:ui::TextEliderTest_TestGeneralEliding_Test::TestBody
+}