Migrate WTF::HashMap::add() to ::insert()

third_party/WebKit/Source/platform/graphics/OffscreenCanvasPlaceholder.cpp

 // Copyright 2016 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/graphics/OffscreenCanvasPlaceholder.h"
 
 #include "platform/CrossThreadFunctional.h"
 #include "platform/WebTaskRunner.h"
 #include "platform/graphics/OffscreenCanvasFrameDispatcher.h"
 #include "platform/graphics/StaticBitmapImage.h"
@@ skipping 31 matching lines @@
     unsigned placeholderId) {
   PlaceholderIdMap::iterator it = placeholderRegistry().find(placeholderId);
   if (it == placeholderRegistry().end())
     return nullptr;
   return it->value;
 }
 
 void OffscreenCanvasPlaceholder::registerPlaceholder(unsigned placeholderId) {
   DCHECK(!placeholderRegistry().contains(placeholderId));
   DCHECK(!isPlaceholderRegistered());
-  placeholderRegistry().add(placeholderId, this);
+  placeholderRegistry().insert(placeholderId, this);
   m_placeholderId = placeholderId;
 }
 
 void OffscreenCanvasPlaceholder::unregisterPlaceholder() {
   if (!isPlaceholderRegistered())
     return;
   DCHECK(placeholderRegistry().find(m_placeholderId)->value == this);
   placeholderRegistry().erase(m_placeholderId);
   m_placeholderId = kNoPlaceholderId;
 }
@@ skipping 18 matching lines @@
     m_placeholderFrame->transfer();
     m_frameDispatcherTaskRunner->postTask(
         BLINK_FROM_HERE,
         crossThreadBind(releaseFrameToDispatcher, std::move(m_frameDispatcher),
                         std::move(m_placeholderFrame),
                         m_placeholderFrameResourceId));
   }
 }
 
 }  // blink