tracing for RenderTextMac::GetDisplayText() eliding goo

ui/gfx/render_text_mac.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/render_text_mac.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 
 #include <algorithm>
 #include <cmath>
 #include <utility>
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/strings/sys_string_conversions.h"
 #include "skia/ext/skia_utils_mac.h"
 
+#include "base/debug/stack_trace.h"
+
 namespace gfx {
 
 RenderTextMac::RenderTextMac()
     : common_baseline_(0), runs_valid_(false) {
 }
 
 RenderTextMac::~RenderTextMac() {
 }
 
 scoped_ptr<RenderText> RenderTextMac::CreateInstanceOfSameType() const {
   return make_scoped_ptr(new RenderTextMac);
 }
 
 bool RenderTextMac::MultilineSupported() const {
   return false;
 }
 
 const base::string16& RenderTextMac::GetDisplayText() {
+
   return text_elided() ? display_text() : layout_text();
 }
 
 Size RenderTextMac::GetStringSize() {
   EnsureLayout();
   return Size(std::ceil(string_size_.width()), string_size_.height());
 }
 
 SizeF RenderTextMac::GetStringSizeF() {
   EnsureLayout();
@@ skipping 59 matching lines @@
   // TODO(asvitkine): Implement this. http://crbug.com/131618
   return index;
 }
 
 bool RenderTextMac::IsValidCursorIndex(size_t index) {
   // TODO(asvitkine): Implement this. http://crbug.com/131618
   return IsValidLogicalIndex(index);
 }
 
 void RenderTextMac::OnLayoutTextAttributeChanged(bool text_changed) {
+  DLOG(INFO) << "OnLayoutTextAttributeChanged: " << GetDisplayText();
   //DCHECK(!multiline()) << "RenderTextMac does not support multi line";
   if (text_changed) {
     if (elide_behavior() != NO_ELIDE &&
         elide_behavior() != FADE_TAIL &&
         !layout_text().empty()) {
       UpdateDisplayText(GetContentWidth());
     } else {
       UpdateDisplayText(0);
     }
   }
@@ skipping 237 matching lines @@
     CTUnderlineStyle value = kCTUnderlineStyleNone;
     if (underline && CFNumberGetValue(underline, kCFNumberSInt32Type, &value))
       run->underline = (value == kCTUnderlineStyleSingle);
 
     run_origin.offset(run_width, 0);
   }
   runs_valid_ = true;
 }
 
 }  // namespace gfx