MacViews: Support MODAL_TYPE_WINDOW in dialog tests.

ui/views/widget/native_widget_mac.mm

 // Copyright 2014 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 "ui/views/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include <utility>
 
@@ skipping 673 matching lines @@
   BridgedNativeWidget* bridge =
       NativeWidgetMac::GetBridgeForNativeWindow([native_view window]);
   if (!bridge) {
     // The NSWindow is not itself a views::Widget, but it may have children that
     // are. Support returning Widgets that are parented to the NSWindow, except:
     // - Ignore requests for children of an NSView that is not a contentView.
     // - We do not add a Widget for |native_view| to |children| (there is none).
     if ([[native_view window] contentView] != native_view)
       return;
 
-    for (NSWindow* native_child in [[native_view window] childWindows])
+    // Collect -sheets and -childWindows. A window should never appear in both,
+    // since that causes AppKit to glitch.
+    NSArray* sheet_children = [[native_view window] sheets];
+    for (NSWindow* native_child in sheet_children)
       GetAllChildWidgets([native_child contentView], children);
+
+    for (NSWindow* native_child in [[native_view window] childWindows]) {
+      DCHECK(![sheet_children containsObject:native_child]);
+      GetAllChildWidgets([native_child contentView], children);
+    }
     return;
   }
 
   // If |native_view| is a subview of the contentView, it will share an
   // NSWindow, but will itself be a native child of the Widget. That is, adding
   // bridge->..->GetWidget() to |children| would be adding the _parent_ of
   // |native_view|, not the Widget for |native_view|. |native_view| doesn't have
   // a corresponding Widget of its own in this case (and so can't have Widget
   // children of its own on Mac).
   if (bridge->ns_view() != native_view)
     return;
 
   // Code expects widget for |native_view| to be added to |children|.
   if (bridge->native_widget_mac()->GetWidget())
     children->insert(bridge->native_widget_mac()->GetWidget());
 
   // When the NSWindow *is* a Widget, only consider child_windows(). I.e. do not
   // look through -[NSWindow childWindows] as done for the (!bridge) case above.
   // -childWindows does not support hidden windows, and anything in there which
   // is not in child_windows() would have been added by AppKit.
   for (BridgedNativeWidget* child : bridge->child_windows())
     GetAllChildWidgets(child->ns_view(), children);
 }
 
 // static
 void NativeWidgetPrivate::GetAllOwnedWidgets(gfx::NativeView native_view,
                                              Widget::Widgets* owned) {
-  NOTIMPLEMENTED();
+  BridgedNativeWidget* bridge =
+      NativeWidgetMac::GetBridgeForNativeWindow([native_view window]);
+  if (!bridge) {
+    GetAllChildWidgets(native_view, owned);
+    return;
+  }
+  if (bridge->ns_view() != native_view)
+    return;
+  for (BridgedNativeWidget* child : bridge->child_windows())
+    GetAllChildWidgets(child->ns_view(), owned);
 }
 
 // static
 void NativeWidgetPrivate::ReparentNativeView(gfx::NativeView native_view,
                                              gfx::NativeView new_parent) {
   BridgedNativeWidget* bridge =
       NativeWidgetMac::GetBridgeForNativeWindow([native_view window]);
   if (bridge && bridge->parent() &&
       bridge->parent()->GetNSWindow() == [new_parent window])
     return;  // Nothing to do.
@@ skipping 40 matching lines @@
   [[ViewsNSWindowCloseAnimator alloc] initWithWindow:window];
 }
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   [window_ close];
   [animation_ setDelegate:nil];
   [self release];
 }
 
 @end