Migrate WTF::HashMap::get() to ::at()

third_party/WebKit/Source/core/paint/ObjectPaintInvalidator.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 "core/paint/ObjectPaintInvalidator.h"
 
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/api/LayoutPartItem.h"
@@ skipping 410 matching lines @@
 
 void ObjectPaintInvalidator::slowSetPaintingLayerNeedsRepaint() {
   if (PaintLayer* paintingLayer = m_object.paintingLayer())
     paintingLayer->setNeedsRepaint();
 }
 
 LayoutPoint ObjectPaintInvalidator::previousLocationInBacking() const {
   DCHECK(m_object.hasPreviousLocationInBacking() ==
          locationInBackingMap().contains(&m_object));
   return m_object.hasPreviousLocationInBacking()
-             ? locationInBackingMap().get(&m_object)
+             ? locationInBackingMap().at(&m_object)
              : m_object.previousVisualRect().location();
 }
 
 void ObjectPaintInvalidator::setPreviousLocationInBacking(
     const LayoutPoint& location) {
   DCHECK(m_object.hasPreviousLocationInBacking() ==
          locationInBackingMap().contains(&m_object));
   if (location == m_object.previousVisualRect().location()) {
     if (m_object.hasPreviousLocationInBacking()) {
       locationInBackingMap().erase(&m_object);
@@ skipping 101 matching lines @@
   // shouldInvalidationSelection is set (in case that the selection itself
   // changed).
   bool fullInvalidation = isImmediateFullPaintInvalidationReason(reason);
   if (!fullInvalidation && !m_object.shouldInvalidateSelection())
     return;
 
   DCHECK(m_object.hasPreviousSelectionVisualRect() ==
          selectionVisualRectMap().contains(&m_object));
   LayoutRect oldSelectionRect;
   if (m_object.hasPreviousSelectionVisualRect())
-    oldSelectionRect = selectionVisualRectMap().get(&m_object);
+    oldSelectionRect = selectionVisualRectMap().at(&m_object);
   LayoutRect newSelectionRect = m_object.localSelectionRect();
   if (!newSelectionRect.isEmpty()) {
     m_context.mapLocalRectToPaintInvalidationBacking(m_object,
                                                      newSelectionRect);
     newSelectionRect.move(m_object.scrollAdjustmentForPaintInvalidation(
         *m_context.paintInvalidationContainer));
   }
 
   setPreviousSelectionVisualRect(m_object, newSelectionRect);
 
@@ skipping 47 matching lines @@
 
   m_context.paintingLayer->setNeedsRepaint();
   m_object.invalidateDisplayItemClients(reason);
   return reason;
 }
 
 DisablePaintInvalidationStateAsserts::DisablePaintInvalidationStateAsserts()
     : m_disabler(&gDisablePaintInvalidationStateAsserts, true) {}
 
 }  // namespace blink