MacViews: Fix accessibility hit tests, provide AXTitle

ui/views/widget/native_widget_mac_unittest.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.
 
 #import "ui/views/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/run_loop.h"
+#include "base/strings/utf_string_conversions.h"
+#import "testing/gtest_mac.h"
 #import "ui/events/test/cocoa_test_event_utils.h"
 #include "ui/events/test/event_generator.h"
+#import "ui/gfx/mac/coordinate_conversion.h"
+#include "ui/views/controls/label.h"
 #include "ui/views/native_cursor.h"
 #include "ui/views/test/test_widget_observer.h"
 #include "ui/views/test/widget_test.h"
 
 namespace views {
 namespace test {
 
 // Tests for parts of NativeWidgetMac not covered by BridgedNativeWidget, which
 // need access to Cocoa APIs.
 typedef WidgetTest NativeWidgetMacTest;
@@ skipping 308 matching lines @@
 
   // Moving to the third view (but remaining in the content area) should also
   // forward to the native NSWindow implementation.
   event_generator.MoveMouseTo(gfx::Point(250, 50));
   [widget->GetNativeWindow() cursorUpdate:event_in_content];
   EXPECT_EQ(arrow, [NSCursor currentCursor]);
 
   widget->CloseNow();
 }
 
+// Tests that an accessibility request from the system makes its way through to
+// a views::Label filling the window.
+TEST_F(NativeWidgetMacTest, AccessibilityIntegration) {
+  Widget* widget = CreateTopLevelPlatformWidget();
+  gfx::Rect screen_rect(50, 50, 100, 100);
+  widget->SetBounds(screen_rect);
+
+  const base::string16 test_string = base::ASCIIToUTF16("Green");
+  views::Label* label = new views::Label(test_string);
+  label->SetBounds(0, 0, 100, 100);
+  widget->GetContentsView()->AddChildView(label);
+  widget->Show();
+
+  // Accessibility hit tests come in Cocoa screen coordinates.
+  NSRect nsrect = gfx::ScreenRectToNSRect(screen_rect);
+  NSPoint midpoint = NSMakePoint(NSMidX(nsrect), NSMidY(nsrect));
+
+  id hit = [widget->GetNativeWindow() accessibilityHitTest:midpoint];
+  id title = [hit accessibilityAttributeValue:NSAccessibilityTitleAttribute];
+  EXPECT_NSEQ(title, @"Green");
+}
+
 }  // namespace test
 }  // namespace views