Add support for X11 workspaces

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 288 matching lines @@
 gfx::Rect NativeWidgetMac::GetClientAreaBoundsInScreen() const {
   NSWindow* window = GetNativeWindow();
   return gfx::ScreenRectFromNSRect(
       [window contentRectForFrameRect:[window frame]]);
 }
 
 gfx::Rect NativeWidgetMac::GetRestoredBounds() const {
   return bridge_ ? bridge_->GetRestoredBounds() : gfx::Rect();
 }
 
+std::string NativeWidgetMac::GetWorkspace() const {
+  return "";

[sky, 2016/05/03 17:40:53]

std::string()

[Tom (Use chromium acct), 2016/05/03 19:38:39]

Done.

+}
+
 void NativeWidgetMac::SetBounds(const gfx::Rect& bounds) {
   if (bridge_)
     bridge_->SetBounds(bounds);
 }
 
 void NativeWidgetMac::SetSize(const gfx::Size& size) {
   // Ensure the top-left corner stays in-place (rather than the bottom-left,
   // which -[NSWindow setContentSize:] would do).
   SetBounds(gfx::Rect(GetWindowBoundsInScreen().origin(), size));
 }
@@ skipping 417 matching lines @@
   [[ViewsNSWindowCloseAnimator alloc] initWithWindow:window];
 }
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   [window_ close];
   [animation_ setDelegate:nil];
   [self release];
 }
 
 @end