Add chooser permission UI code for Mac

chrome/browser/usb/usb_chooser_bubble_delegate.cc

Index: chrome/browser/usb/usb_chooser_bubble_delegate.cc
diff --git a/chrome/browser/usb/usb_chooser_bubble_delegate.cc b/chrome/browser/usb/usb_chooser_bubble_delegate.cc
index ee2d4471f4cd26a0883cdef61ae619dd605175e5..8beeb1fd15fb50c375869f551663a287ccb0ac58 100644
--- a/chrome/browser/usb/usb_chooser_bubble_delegate.cc
+++ b/chrome/browser/usb/usb_chooser_bubble_delegate.cc
@@ -17,12 +17,6 @@
 #include "device/usb/usb_device_filter.h"
 #include "url/gurl.h"
 
-#if defined(OS_MACOSX)
-#include "components/bubble/bubble_ui.h"
-#else
-#include "chrome/browser/ui/views/website_settings/chooser_bubble_ui_view.h"
-#endif
-
 namespace {
 
 // Check if the origin is in the description set.
@@ -54,12 +48,12 @@ UsbChooserBubbleDelegate::UsbChooserBubbleDelegate(
     mojo::Array<device::usb::DeviceFilterPtr> device_filters,
     content::RenderFrameHost* render_frame_host,
     const webusb::WebUsbPermissionBubble::GetPermissionCallback& callback)
-    : browser_(browser),
+    : ChooserBubbleDelegate(browser),
       render_frame_host_(render_frame_host),
       callback_(callback),
       usb_service_observer_(this),
       weak_factory_(this) {
-  DCHECK(browser_);
+  DCHECK(browser);

[Reilly Grant (use Gerrit), 2015/12/09 18:56:41]

nit: This DCHECK isn't really necessary because the parent class does it too and
this constructor doesn't access |browser|.

[juncai, 2015/12/09 23:13:56]

Done.

   device::UsbService* usb_service =
       device::DeviceClient::Get()->GetUsbService();
   if (!usb_service)
@@ -80,16 +74,6 @@ UsbChooserBubbleDelegate::~UsbChooserBubbleDelegate() {
     callback_.Run(nullptr);
 }
 
-scoped_ptr<BubbleUi> UsbChooserBubbleDelegate::BuildBubbleUi() {
-  scoped_ptr<BubbleUi> bubble_ui;
-// TODO(juncai): Add chooser bubble ui cocoa code for Mac.
-// Please refer to http://crbug.com/492204 for more information.
-#if !defined(OS_MACOSX)
-  bubble_ui.reset(new ChooserBubbleUiView(browser_, this));
-#endif
-  return bubble_ui.Pass();
-}
-
 const std::vector<base::string16>& UsbChooserBubbleDelegate::GetOptions()
     const {
   return devices_names_;