WebviewCaptureVisibleRegionFunction 319 chrome/browser/extensions/api/webview/webview_api.cc WebviewCaptureVisibleRegionFunction::WebviewCaptureVisibleRegionFunction() { WebviewCaptureVisibleRegionFunction 322 chrome/browser/extensions/api/webview/webview_api.cc WebviewCaptureVisibleRegionFunction::~WebviewCaptureVisibleRegionFunction() {