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

third_party/WebKit/Source/modules/webdatabase/DatabaseTracker.cpp

Index: third_party/WebKit/Source/modules/webdatabase/DatabaseTracker.cpp
diff --git a/third_party/WebKit/Source/modules/webdatabase/DatabaseTracker.cpp b/third_party/WebKit/Source/modules/webdatabase/DatabaseTracker.cpp
index 2eeb8c7a460cfc346f8652bd89304d406e066f0d..cf537dd5fd13ca5d20532af47a3797a5a5794380 100644
--- a/third_party/WebKit/Source/modules/webdatabase/DatabaseTracker.cpp
+++ b/third_party/WebKit/Source/modules/webdatabase/DatabaseTracker.cpp
@@ -134,10 +134,10 @@ void DatabaseTracker::removeOpenDatabase(Database* database) {
 
     databaseSet->remove(found);
     if (databaseSet->isEmpty()) {
-      nameMap->remove(name);
+      nameMap->erase(name);
       delete databaseSet;
       if (nameMap->isEmpty()) {
-        m_openDatabaseMap->remove(originString);
+        m_openDatabaseMap->erase(originString);
         delete nameMap;
       }
     }