2010-03-15 Doug Kwan <dougkwan@google.com>

2010-03-15  Doug Kwan  <dougkwan@google.com>

	* stringpool.cc (Stringpool_template::Stringpool_template): Initialize
	offset_.
	(Stringpool_template::new_key_offset): New method.
	(Stringpool_template::add_string): Assign offsets when adding new
	strings.
	(Stringpool_template::set_string_offsets): Do not set string offsets
	when not optimizing.
	* stringpool.h (Chunked_vector::Chunked_vector): Initialize data
	member size_.
   	(Chunked_vector::clear): Clear size_.
   	(Chunked_vector::reserve): Call reserve method of all Element_vectors.
   	(Chunked_vector::size): Return size_.
   	(Chunked_vector::push_back): Use size_ to find insert position.
	(Chunked_vector::size_): New data member.
	(Stringpool_template::set_no_zero_null): Assert string set is empty.
	(Stringpool_template::new_key_offset): New method declaration.
	(Stringpool_template::offset_): New data member.