* Output of `node_modules/.bin/electron --version`: 3.0.0
* Operating System (Platform and Version): macOS High Sierra 10.13.6
* Output of `node_modules/.bin/electron --version` on last known working Electron version (if applicable): 2.0.0

**Expected Behavior**
Hitting `Cmd+V` should paste the contents of the clipboard in the DevTools Console tab. 

**Actual behavior**
Nothing happens as if I haven't pressed anything.

**To Reproduce**
You can run any Electron app running 3.0.0 and the issue will be reproduced. I tried it with our own project and also a boilerplate project that contained nothing but the setup code to run the app.
atom/browser/common_web_contents_delegate_views.cc
#include "atom/browser/common_web_contents_delegate.h"
#include "atom/browser/api/atom_api_web_contents_view.h"
#include "atom/browser/native_window_views.h"
#include "atom/browser/web_contents_preferences.h"
#include "base/strings/string_util.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "ui/events/keycodes/keyboard_codes.h"
#if defined(USE_X11)
#include "atom/browser/browser.h"
#endif
namespace atom {
void CommonWebContentsDelegate::HandleKeyboardEvent(