Use C++11 range-based loop in core/events

Source/core/events/CompositionEvent.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 65 matching lines @@
 void CompositionEvent::initializeSegments(const Vector<CompositionUnderline>* underlines)
 {
     m_activeSegmentStart = 0;
     m_activeSegmentEnd = m_data.length();
 
     if (!underlines || !underlines->size()) {
         m_segments.append(0);
         return;
     }
 
-    for (size_t i = 0; i < underlines->size(); ++i) {
-        if (underlines->at(i).thick) {
-            m_activeSegmentStart = underlines->at(i).startOffset;
-            m_activeSegmentEnd = underlines->at(i).endOffset;
+    for (const auto& underline : *underlines) {
+        if (underline.thick) {
+            m_activeSegmentStart = underline.startOffset;
+            m_activeSegmentEnd = underline.endOffset;
             break;
         }
     }
 
-    for (size_t i = 0; i < underlines->size(); ++i)
-        m_segments.append(underlines->at(i).startOffset);
+    for (const auto& underline : *underlines)
+        m_segments.append(underline.startOffset);
 }
 
 const AtomicString& CompositionEvent::interfaceName() const
 {
     return EventNames::CompositionEvent;
 }
 
 void CompositionEvent::trace(Visitor* visitor)
 {
     UIEvent::trace(visitor);
 }
 
 } // namespace blink