First pass at Comment API

debugger/QT/SkDebuggerGUI.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDebuggerGUI.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
@@ skipping 941 matching lines @@
 
 void SkDebuggerGUI::setupListWidget(SkTArray<SkString>* command) {
     fListWidget.clear();
     int counter = 0;
     int indent = 0;
     for (int i = 0; i < command->count(); i++) {
         QListWidgetItem *item = new QListWidgetItem();
         item->setData(Qt::DisplayRole, (*command)[i].c_str());
         item->setData(Qt::UserRole + 1, counter++);
 
-        if (0 == strcmp("Restore", (*command)[i].c_str())) {
+        if (0 == strcmp("Restore", (*command)[i].c_str()) ||
+            0 == strcmp("EndCommentGroup", (*command)[i].c_str())) {
             indent -= 10;
         }
 
         item->setData(Qt::UserRole + 3, indent);
 
         if (0 == strcmp("Save", (*command)[i].c_str()) ||
-            0 == strcmp("Save Layer", (*command)[i].c_str())) {
+            0 == strcmp("Save Layer", (*command)[i].c_str()) ||
+            0 == strcmp("BeginCommentGroup", (*command)[i].c_str())) {
             indent += 10;
         }
 
         item->setData(Qt::UserRole + 4, -1.0);
 
         fListWidget.addItem(item);
     }
 }
 
 void SkDebuggerGUI::setupOverviewText(const SkTDArray<double>* typeTimes,
@@ skipping 19 matching lines @@
     }
 
     // NOTE(chudy): Makes first item unselectable.
     QStandardItemModel* model = qobject_cast<QStandardItemModel*>(
             fFilter.model());
     QModelIndex firstIndex = model->index(0, fFilter.modelColumn(),
             fFilter.rootModelIndex());
     QStandardItem* firstItem = model->itemFromIndex(firstIndex);
     firstItem->setSelectable(false);
 }