Background: Davies was born Marion Cecilia Elizabeth Brooklyn Douras on January 3, 1897, in Brooklyn, the youngest of five children born to Bernard J. Douras (1857-1935), a lawyer and judge in New York City; and Rose Reilly (1867-1928). Her father performed the civil marriage of Gloria Gould Bishop. She had three older sisters, Ethel, Rose, and Reine. An older brother, Charles, drowned at the age of 15 in 1906.
Context: Publishing mogul William Randolph Hearst and Davies lived as a couple for decades but were never married, as Hearst's wife refused to give him a divorce. At one point, he reportedly came close to marrying Davies, but decided his wife's settlement demands were too high. Hearst was extremely jealous and possessive of her, even though he was married throughout their relationship. Lita Grey, the second wife of Charlie Chaplin, wrote four decades later that Davies confided with her about the relationship with Hearst. Grey quoted Davies saying:  God, I'd give everything I have to marry that silly old man. Not for the money and security--he's given me more than I'll ever need. Not because he's such cozy company, either. Most times, when he starts jawing, he bores me stiff. And certainly not because he's so wonderful behind the barn. Why, I could find a million better lays any Wednesday. No, you know what he gives me, sugar? He gives me the feeling I'm worth something to him. A whole lot of what we have, or don't have, I don't like. He's got a wife who'll never give him a divorce. She knows about me, but it's still understood that when she decides to go to the ranch for a week or a weekend, I've got to vamoose. And he snores, and he can be petty, and has sons about as old as me. But he's kind and he's good to me, and I'd never walk out on him.  By the late 1930s, Hearst was suffering financial reversals. After selling many of the contents of St Donat's Castle, Davies sold her jewelry, stocks and bonds and wrote a check for $1 million to Hearst to save him from bankruptcy. Davies had developed a drinking problem over the course of many years, but her alcoholism grew worse in the latter 1930's and the 1940's, as she and Hearst lived an increasingly isolated life. The two spent most of the Second World War at Hearst's Northern California estate of Wyntoon, until returning to San Simeon in 1945.  Hearst died on August 14, 1951. In his will, Hearst provided handsomely for Davies, leaving her 170,000 shares of Hearst Corporation stock, in addition to 30,000 he had established for her in a trust fund in 1950. This gave her a controlling interest in the company for a short-time, until she chose to relinquish the stock voluntarily to the corporation on October 30th 1951. She retained her original 30,000 shares and an advisory role with the corporation.
Question: How did the provisions of the will benefit her?

Answer:
gave her a controlling interest in the company for a short-time,