chore: adjust formatting to new clang-format.

- fixes wrapping for object literal keys called `template`.
- spacing in destructuring expressions.
- changes to keep trailing return types of functions closer to their
  function declaration.
- better formatting of string literals.

Closes #4828

modules/benchpress/src/webdriver/chrome_driver_extension.ts

@@ -220,8 +220,8 @@ export class ChromeDriverExtension extends WebDriverExtension {
   }
 }
 
-function normalizeEvent(chromeEvent: {[key: string]: any}, data: {[key: string]: any}):
-    {[key: string]: any} {
+function normalizeEvent(chromeEvent: {[key: string]: any},
+                        data: {[key: string]: any}): {[key: string]: any} {
   var ph = chromeEvent['ph'];
   if (StringWrapper.equals(ph, 'S')) {
     ph = 'b';