Fix license headers in a number of files

chrome/test/security_tests/sandbox_browsertest.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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 "base/command_line.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
 
 class SandboxTest : public InProcessBrowserTest {
  protected:
   SandboxTest() : InProcessBrowserTest() {}
 
   virtual void SetUpCommandLine(CommandLine* command_line) {
     command_line->AppendSwitchASCII(switches::kTestSandbox,
                                     "security_tests.dll");
   }
 };
 
 // Need a cross-platform test library: http://crbug.com/45771
 #if defined(OS_WIN)
 // Verifies that chrome is running properly.
 IN_PROC_BROWSER_TEST_F(SandboxTest, ExecuteDll) {
   EXPECT_EQ(1, browser()->tab_count());
 }
 #endif