Mark BrowserNonClientFrameViewBrowserTest.InactiveSeparatorColor as Flaky on Windows.

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

 // Copyright 2016 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_non_client_frame_view.h"
 
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "ui/base/theme_provider.h"
 
 using BrowserNonClientFrameViewBrowserTest = ExtensionBrowserTest;
 
+// Test is Flaky on Windows see crbug.com/600201.
+#if defined(OS_WIN)
+#define MAYBE_InactiveSeparatorColor FLAKY_InactiveSeparatorColor
+#else
+#define MAYBE_InactiveSeparatorColor InactiveSeparatorColor
+#endif
+
 // Tests that the color returned by
 // BrowserNonClientFrameView::GetToolbarTopSeparatorColor() tracks the window
 // actiavtion state.
 IN_PROC_BROWSER_TEST_F(BrowserNonClientFrameViewBrowserTest,
-                       InactiveSeparatorColor) {
+                       MAYBE_InactiveSeparatorColor) {
   // In the default theme, the active and inactive separator colors may be the
   // same.  Install a custom theme where they are different.
   InstallExtension(test_data_dir_.AppendASCII("theme"), 1);
   BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser());
   const BrowserNonClientFrameView* frame_view =
       browser_view->frame()->GetFrameView();
   const ui::ThemeProvider* theme_provider = frame_view->GetThemeProvider();
   const SkColor theme_active_color =
       theme_provider->GetColor(ThemeProperties::COLOR_TOOLBAR_TOP_SEPARATOR);
   const SkColor theme_inactive_color =
       theme_provider->GetColor(
           ThemeProperties::COLOR_TOOLBAR_TOP_SEPARATOR_INACTIVE);
   EXPECT_NE(theme_active_color, theme_inactive_color);
 
   // Check that the separator color is the active color when the window is
   // active.
   browser_view->Activate();
   EXPECT_TRUE(browser_view->IsActive());
   const SkColor frame_active_color = frame_view->GetToolbarTopSeparatorColor();
   EXPECT_EQ(theme_active_color, frame_active_color);
 
   // Check that the separator color is the inactive color when the window is
   // inactive.
   browser_view->Deactivate();
   EXPECT_FALSE(browser_view->IsActive());
   const SkColor frame_inactive_color =
       frame_view->GetToolbarTopSeparatorColor();
   EXPECT_EQ(theme_inactive_color, frame_inactive_color);
 }