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

mojo/public/cpp/bindings/tests/wtf_map_unittest.cc

 // Copyright 2017 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 "mojo/public/cpp/bindings/tests/rect_blink.h"
 #include "mojo/public/interfaces/bindings/tests/rect.mojom-blink.h"
 #include "mojo/public/interfaces/bindings/tests/test_structs.mojom-blink.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace test {
 namespace {
 
 TEST(WTFMapTest, StructKey) {
   WTF::HashMap<blink::RectPtr, int32_t> map;
   map.insert(blink::Rect::New(1, 2, 3, 4), 123);
 
   blink::RectPtr key = blink::Rect::New(1, 2, 3, 4);
   ASSERT_NE(map.end(), map.find(key));
   ASSERT_EQ(123, map.find(key)->value);
 
-  map.remove(key);
+  map.erase(key);
   ASSERT_EQ(0u, map.size());
 }
 
 TEST(WTFMapTest, TypemappedStructKey) {
   WTF::HashMap<blink::ContainsHashablePtr, int32_t> map;
   map.insert(blink::ContainsHashable::New(RectBlink(1, 2, 3, 4)), 123);
 
   blink::ContainsHashablePtr key =
       blink::ContainsHashable::New(RectBlink(1, 2, 3, 4));
   ASSERT_NE(map.end(), map.find(key));
   ASSERT_EQ(123, map.find(key)->value);
 
-  map.remove(key);
+  map.erase(key);
   ASSERT_EQ(0u, map.size());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo