Make some code gender neutral.

chrome/browser/ui/ash/chrome_screenshot_grabber.cc

Index: chrome/browser/ui/ash/chrome_screenshot_grabber.cc
diff --git a/chrome/browser/ui/ash/chrome_screenshot_grabber.cc b/chrome/browser/ui/ash/chrome_screenshot_grabber.cc
index 77c973948c798ef6ad8d445075f86bd31f7c36a6..37a9bd431b011dc669c0c2ff22f1f1f3c6c2dc1c 100644
--- a/chrome/browser/ui/ash/chrome_screenshot_grabber.cc
+++ b/chrome/browser/ui/ash/chrome_screenshot_grabber.cc
@@ -398,7 +398,7 @@ void ChromeScreenshotGrabber::OnScreenshotCompleted(
     const base::FilePath& screenshot_path) {
   // Do not show a notification that a screenshot was taken while no user is
   // logged in, since it is confusing for the user to get a message about it
-  // after he logs in (crbug.com/235217).
+  // after they log in (crbug.com/235217).
   if (!chromeos::LoginState::Get()->IsUserLoggedIn())
     return;