Salesforce.com Inc. said Tuesday it is planning to invest $2.2 billion in its French business in the next five years, moving to take advantage of a market where it is enjoying rapid growth. The customer-relationship management software provider said it is planning to significantly increase headcount in France, expand its real estate footprint and data center capacity. Shares were up 1% premarket, but have gained 45% in the last 12 months, while the S&P 500 has gained 12%.