HandleTakePartialScreenshot 447 ash/accelerators/accelerator_controller.cc bool HandleTakePartialScreenshot(ScreenshotDelegate* screenshot_delegate) { HandleTakePartialScreenshot 23 ash/test/test_screenshot_delegate.cc void TestScreenshotDelegate::HandleTakePartialScreenshot( HandleTakePartialScreenshot 440 chrome/browser/ui/ash/screenshot_taker.cc void ScreenshotTaker::HandleTakePartialScreenshot(