PoC: Using the toolkit-views fullscreen access bubble on Mac

chrome/browser/ui/cocoa/browser_window_cocoa.h

Index: chrome/browser/ui/cocoa/browser_window_cocoa.h
diff --git a/chrome/browser/ui/cocoa/browser_window_cocoa.h b/chrome/browser/ui/cocoa/browser_window_cocoa.h
index 214e45d8297f991d53c8c10f40d5457e038ba13e..6a8e7e8421e100b378730238bf281f10d0b7ae5d 100644
--- a/chrome/browser/ui/cocoa/browser_window_cocoa.h
+++ b/chrome/browser/ui/cocoa/browser_window_cocoa.h
@@ -14,6 +14,7 @@
 #include "chrome/browser/ui/exclusive_access/exclusive_access_context.h"
 #include "chrome/browser/ui/search/search_model_observer.h"
 #include "chrome/browser/ui/tabs/tab_utils.h"
+#include "chrome/browser/ui/views/exclusive_access_bubble_views_context.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 #include "ui/base/ui_base_types.h"
 
@@ -37,6 +38,7 @@ class Extension;
 class BrowserWindowCocoa
     : public BrowserWindow,
       public ExclusiveAccessContext,
+      public ExclusiveAccessBubbleViewsContext,
       public extensions::ExtensionKeybindingRegistry::Delegate,
       public SearchModelObserver {
  public:
@@ -175,6 +177,17 @@ class BrowserWindowCocoa
   void UnhideDownloadShelf() override;
   void HideDownloadShelf() override;
 
+  // Overridden from ExclusiveAccessBubbleViewsContext:
+  ExclusiveAccessManager* GetExclusiveAccessManager() override;
+  gfx::NativeView GetNativeView() const override;
+  bool IsParentActive() const override;
+  bool GetAccelerator2(int cmd_id, ui::Accelerator* accelerator) const override;
+  gfx::Point GetCursorScreenPoint() override;
+  bool HitTestPoint(const gfx::Point& point) const override;
+  gfx::Rect GetClientAreaBoundsInScreen() const override;
+  bool IsImmersiveModeEnabled() override;
+  gfx::Rect GetTopContainerBoundsInScreen() override;
+
   // Overridden from ExtensionKeybindingRegistry::Delegate:
   extensions::ActiveTabPermissionGranter* GetActiveTabPermissionGranter()
       override;