Fix some views unittests on desktop Linux.

ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc

 // Copyright (c) 2013 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/desktop_aura/desktop_screen_x11.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 295 matching lines @@
                                   gfx::Rect(640, 0, 1024, 768)));
   displays.push_back(gfx::Display(kSecondDisplay, gfx::Rect(0, 0, 640, 480)));
   screen()->ProcessDisplayChange(displays);
 
   // The first display in the list is always the primary, even if other
   // displays are to the left in screen layout.
   EXPECT_EQ(kFirstDisplay, screen()->GetPrimaryDisplay().id());
 }
 
 TEST_F(DesktopScreenX11Test, GetWindowAtScreenPoint) {
+  if (!ui::WmSupportsHint(ui::GetAtom("_NET_ACTIVE_WINDOW")))
+    return;
+
   Widget* window_one = BuildTopLevelDesktopWidget(gfx::Rect(110, 110, 10, 10),
       false);
   Widget* window_two = BuildTopLevelDesktopWidget(gfx::Rect(150, 150, 10, 10),
       false);
   Widget* window_three =
       BuildTopLevelDesktopWidget(gfx::Rect(115, 115, 20, 20), false);
 
   window_three->Show();
   window_two->Show();
   window_one->Show();
@@ skipping 42 matching lines @@
   EXPECT_EQ(
       kSecondDisplay,
       screen()->GetDisplayNearestWindow(window_two->GetNativeWindow()).id());
 
   window_one->CloseNow();
   window_two->CloseNow();
 }
 
 // Tests that the window is maximized in response to a double click event.
 TEST_F(DesktopScreenX11Test, DoubleClickHeaderMaximizes) {
+  if (!ui::WmSupportsHint(ui::GetAtom("_NET_WM_STATE_MAXIMIZED_VERT")))
+    return;
+
   Widget* widget = BuildTopLevelDesktopWidget(gfx::Rect(0, 0, 100, 100), true);
   widget->Show();
   TestDesktopNativeWidgetAura* native_widget =
       static_cast<TestDesktopNativeWidgetAura*>(widget->native_widget());
   native_widget->set_window_component(HTCAPTION);
 
   aura::Window* window = widget->GetNativeWindow();
   window->SetProperty(aura::client::kCanMaximizeKey, true);
 
   // Cast to superclass as DesktopWindowTreeHostX11 hide IsMaximized
@@ skipping 155 matching lines @@
   screen()->ProcessDisplayChange(displays);
   EXPECT_EQ(2u, changed_display_.size());
 
   displays[0].set_device_scale_factor(1.f);
   displays[1].set_device_scale_factor(1.f);
   screen()->ProcessDisplayChange(displays);
   EXPECT_EQ(4u, changed_display_.size());
 }
 
 }  // namespace views