Get Win32K lockdown for renderers working again on Windows 8+.

content/browser/renderer_host/render_process_host_browsertest.cc

Index: content/browser/renderer_host/render_process_host_browsertest.cc
diff --git a/content/browser/renderer_host/render_process_host_browsertest.cc b/content/browser/renderer_host/render_process_host_browsertest.cc
index b77f20fa44b326984aa189d4db2a49fc9459c13f..e815f016ef540db43213058183dfa60e4c0aa2af 100644
--- a/content/browser/renderer_host/render_process_host_browsertest.cc
+++ b/content/browser/renderer_host/render_process_host_browsertest.cc
@@ -2,18 +2,24 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/command_line.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/common/child_process_messages.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_process_host_observer.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 
+#if defined(OS_WIN)
+#include "base/win/windows_version.h"
+#endif
+
 namespace content {
 namespace {
 
@@ -192,5 +198,42 @@ IN_PROC_BROWSER_TEST_F(RenderProcessHostTest,
   }
 }
 
+#if defined(OS_WIN)
+// Provides functionality to test renderer processes with the Win32K lockdown
+// process mitigation.
+class Win32KLockdownRendererProcessHostTest : public RenderProcessHostTest {
+ public:
+  Win32KLockdownRendererProcessHostTest() {}
+
+  virtual ~Win32KLockdownRendererProcessHostTest() {}
+
+ protected:
+  virtual void SetUp() OVERRIDE {
+    base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+    command_line->AppendSwitch(switches::kEnableWin32kRendererLockDown);
+    RenderProcessHostTest::SetUp();
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(Win32KLockdownRendererProcessHostTest);
+};
+
+// Tests whether navigation requests with the Win32K lockdown mitigation set
+// work correctly.
+IN_PROC_BROWSER_TEST_F(Win32KLockdownRendererProcessHostTest,
+                       RendererWin32KLockdownNavigationTest) {
+  if (base::win::GetVersion() < base::win::VERSION_WIN8)
+    return;
+
+  ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
+
+  GURL test_url = embedded_test_server()->GetURL("/simple_page.html");
+  NavigateToURL(shell(), test_url);
+
+  EXPECT_EQ(1, RenderProcessHostCount());
+  EXPECT_EQ(0, process_exits_);
+}
+#endif
+
 }  // namespace
 }  // namespace content