Move hashmap into base/.

src/ast/ast-value-factory.cc

Index: src/ast/ast-value-factory.cc
diff --git a/src/ast/ast-value-factory.cc b/src/ast/ast-value-factory.cc
index 189d4cc0f5103360adbc4ed043ac06df943b82f9..92322a0ed32e5d76b0ea2a3127dcbee035800582 100644
--- a/src/ast/ast-value-factory.cc
+++ b/src/ast/ast-value-factory.cc
@@ -360,7 +360,7 @@ AstRawString* AstValueFactory::GetString(uint32_t hash, bool is_one_byte,
   // against the AstRawStrings which are in the string_table_. We should not
   // return this AstRawString.
   AstRawString key(is_one_byte, literal_bytes, hash);
-  HashMap::Entry* entry = string_table_.LookupOrInsert(&key, hash);
+  base::HashMap::Entry* entry = string_table_.LookupOrInsert(&key, hash);
   if (entry->value == NULL) {
     // Copy literal contents for later comparison.
     int length = literal_bytes.length();