Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

third_party/WebKit/Source/platform/fonts/FontFallbackIterator.cpp

 // Copyright 2015 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 "platform/fonts/FontFallbackIterator.h"
 
 #include "platform/fonts/FontCache.h"
 #include "platform/fonts/FontDescription.h"
 #include "platform/fonts/FontFallbackList.h"
 #include "platform/fonts/SegmentedFontData.h"
@@ skipping 60 matching lines @@
     return next(hintList);
 
   uint32_t candidateId = candidateTypeface->uniqueID();
   if (m_uniqueFontDataForRangeSetsReturned.contains(candidateId)) {
     return next(hintList);
   }
 
   // We don't want to skip subsetted ranges because HarfBuzzShaper's behavior
   // depends on the subsetting.
   if (candidate->isEntireRange())
-    m_uniqueFontDataForRangeSetsReturned.add(candidateId);
+    m_uniqueFontDataForRangeSetsReturned.insert(candidateId);
   return candidate;
 }
 
 PassRefPtr<FontDataForRangeSet> FontFallbackIterator::next(
     const Vector<UChar32>& hintList) {
   if (m_fallbackStage == OutOfLuck)
     return adoptRef(new FontDataForRangeSet());
 
   if (m_fallbackStage == FallbackPriorityFonts) {
     // Only try one fallback priority font,
@@ skipping 135 matching lines @@
   // because the shaper must have previously tried shaping with the font
   // already.
   if (!hintList.size())
     return nullptr;
 
   FontCache* fontCache = FontCache::fontCache();
   UChar32 hint = hintList[chooseHintIndex(hintList)];
 
   if (!hint || m_previouslyAskedForHint.contains(hint))
     return nullptr;
-  m_previouslyAskedForHint.add(hint);
+  m_previouslyAskedForHint.insert(hint);
   return fontCache->fallbackFontForCharacter(
       m_fontDescription, hint,
       m_fontFallbackList->primarySimpleFontData(m_fontDescription));
 }
 
 }  // namespace blink