Enable showing the toolkit-views simplified fullscreen UI on Mac.

chrome/browser/ui/views/frame/browser_view.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/frame/browser_view.h"
 
 #include <stdint.h>
 #include <algorithm>
 #include <utility>
 
@@ skipping 2646 matching lines @@
         toolbar_->location_bar()->GetLocationBarAnchorPoint());
     ConvertPointToTarget(toolbar_->location_bar(), this, &icon_bottom);
     gfx::Point infobar_top(0, infobar_container_->GetVerticalOverlap(nullptr));
     ConvertPointToTarget(infobar_container_, this, &infobar_top);
     top_arrow_height = infobar_top.y() - icon_bottom.y();
   }
   return top_arrow_height;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserView, ExclusiveAccessContext overrides

[msw, 2016/02/03 22:11:56]

optional nit: "overrides:" (or "implementation:"); blank line below.

[tapted, 2016/02/03 22:27:52]

Done. (went with `implementation:` - I think it's more common, and seems like a
good fit for pure virtuals)

 Profile* BrowserView::GetProfile() {
   return browser_->profile();
 }
 
 WebContents* BrowserView::GetActiveWebContents() {
   return browser_->tab_strip_model()->GetActiveWebContents();
 }
 
 void BrowserView::UnhideDownloadShelf() {
   GetDownloadShelf()->Unhide();
 }
 
 void BrowserView::HideDownloadShelf() {
   GetDownloadShelf()->Hide();
   StatusBubble* statusBubble = GetStatusBubble();
   if (statusBubble)
     statusBubble->Hide();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserView, ExclusiveAccessBubbleViewsContext overrides

[msw, 2016/02/03 22:11:56]

optional nit: "overrides:" (or "implementation:"); blank line below.

[tapted, 2016/02/03 22:27:53]

Done.

 ExclusiveAccessManager* BrowserView::GetExclusiveAccessManager() {
   return browser_->exclusive_access_manager();
 }
 
+views::Widget* BrowserView::GetBubbleAssociatedWidget() {
+  return GetWidget();
+}
+
+ui::AcceleratorProvider* BrowserView::GetAcceleratorProvider() {
+  return this;
+}
+
+gfx::NativeView BrowserView::GetBubbleParentView() const {
+  return GetWidget()->GetNativeView();
+}
+
+gfx::Point BrowserView::GetCursorPointInParent() const {
+  gfx::Point cursor_pos = gfx::Screen::GetScreen()->GetCursorScreenPoint();
+  views::View::ConvertPointFromScreen(GetWidget()->GetRootView(), &cursor_pos);
+  return cursor_pos;
+}
+
+gfx::Rect BrowserView::GetClientAreaBoundsInScreen() const {
+  return GetWidget()->GetClientAreaBoundsInScreen();
+}
+
 bool BrowserView::IsImmersiveModeEnabled() {
   return immersive_mode_controller()->IsEnabled();
 }
 
-views::Widget* BrowserView::GetBubbleAssociatedWidget() {
-  return GetWidget();
-}
-
 gfx::Rect BrowserView::GetTopContainerBoundsInScreen() {
   return top_container_->GetBoundsInScreen();
 }