Migrate WTF::HashMap::remove() to ::erase()

third_party/WebKit/Source/core/layout/LayoutObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  *               (http://www.torchmobile.com/)
@@ skipping 2389 matching lines @@
     iterValue =
         &layerRects.add(currentLayer, Vector<LayoutRect>()).storedValue->value;
   else
     iterValue = &iter->value;
   for (size_t i = 0; i < ownRects.size(); i++) {
     if (!containerRect.contains(ownRects[i])) {
       iterValue->push_back(ownRects[i]);
       if (iterValue->size() > maxRectsPerLayer) {
         // Just mark the entire layer instead, and switch to walking the layer
         // tree instead of the layout tree.
-        layerRects.remove(currentLayer);
+        layerRects.erase(currentLayer);
         currentLayer->addLayerHitTestRects(layerRects);
         return;
       }
       if (newContainerRect.isEmpty())
         newContainerRect = ownRects[i];
     }
   }
   if (newContainerRect.isEmpty())
     newContainerRect = containerRect;
 
@@ skipping 1071 matching lines @@
     const blink::LayoutObject* root = object1;
     while (root->parent())
       root = root->parent();
     root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
   } else {
     WTFLogAlways("%s", "Cannot showLayoutTree. Root is (nil)");
   }
 }
 
 #endif