Add chooser permission UI code for Mac

chrome/browser/ui/website_settings/chooser_bubble_delegate.h

Index: chrome/browser/ui/website_settings/chooser_bubble_delegate.h
diff --git a/chrome/browser/ui/website_settings/chooser_bubble_delegate.h b/chrome/browser/ui/website_settings/chooser_bubble_delegate.h
index d111f2b382233919513bb39d844545c106322631..6166e56782791361b56c923988b0526f211bb95c 100644
--- a/chrome/browser/ui/website_settings/chooser_bubble_delegate.h
+++ b/chrome/browser/ui/website_settings/chooser_bubble_delegate.h
@@ -11,6 +11,8 @@
 #include "base/strings/string16.h"
 #include "components/bubble/bubble_delegate.h"
 
+class Browser;
+
 // Subclass ChooserBubbleDelegate to implement a chooser bubble, which has
 // some introductory text and a list of options that users can pick one of.
 // Create an instance of your subclass and pass it to
@@ -23,7 +25,7 @@
 // into it is not allowed.
 class ChooserBubbleDelegate : public BubbleDelegate {
  public:
-  ChooserBubbleDelegate();
+  explicit ChooserBubbleDelegate(Browser* browser);
   ~ChooserBubbleDelegate() override;
 
   // Since the set of options can change while the UI is visible an
@@ -50,6 +52,7 @@ class ChooserBubbleDelegate : public BubbleDelegate {
 
   // BubbleDelegate:
   std::string GetName() const override;
+  scoped_ptr<BubbleUi> BuildBubbleUi() override;
 
   // The set of options users can pick from. For example, it can be
   // USB/Bluetooth devices names which are listed in the chooser bubble
@@ -70,6 +73,7 @@ class ChooserBubbleDelegate : public BubbleDelegate {
   Observer* observer() const { return observer_; }
 
  private:
+  Browser* browser_;
   Observer* observer_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(ChooserBubbleDelegate);