Add WebUSB bindings and client interface

Source/web/WebLocalFrameImpl.cpp

Index: Source/web/WebLocalFrameImpl.cpp
diff --git a/Source/web/WebLocalFrameImpl.cpp b/Source/web/WebLocalFrameImpl.cpp
index 53cf2efe95c00e3215527cb8e3a8d3f3cafbaa8c..2f6f6314d4524a90c0915eb1b89199f1c8035534 100644
--- a/Source/web/WebLocalFrameImpl.cpp
+++ b/Source/web/WebLocalFrameImpl.cpp
@@ -162,6 +162,7 @@
 #include "modules/push_messaging/PushController.h"
 #include "modules/screen_orientation/ScreenOrientationController.h"
 #include "modules/vr/VRController.h"
+#include "modules/webusb/USBController.h"
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
@@ -1718,6 +1719,8 @@ void WebLocalFrameImpl::setCoreFrame(PassRefPtrWillBeRawPtr<LocalFrame> frame)
             PresentationController::provideTo(*m_frame, m_client ? m_client->presentationClient() : nullptr);
         if (RuntimeEnabledFeatures::permissionsEnabled())
             PermissionController::provideTo(*m_frame, m_client ? m_client->permissionClient() : nullptr);
+        if (RuntimeEnabledFeatures::webUSBEnabled())
+            USBController::provideTo(*m_frame, m_client ? m_client->usbClient() : nullptr);
         if (RuntimeEnabledFeatures::webVREnabled())
             VRController::provideTo(*m_frame, m_client ? m_client->webVRClient() : nullptr);
     }