Cleanup: Fix content header include guards.

content/shell/browser/layout_test/layout_test_browser_context.h

Index: content/shell/browser/layout_test/layout_test_browser_context.h
diff --git a/content/shell/browser/layout_test/layout_test_browser_context.h b/content/shell/browser/layout_test/layout_test_browser_context.h
index 4074f4a7755cdc10807515c94bedf287a4c294de..7bfb8602b3eaf2a200d05bcdbb2391ee354233c1 100644
--- a/content/shell/browser/layout_test/layout_test_browser_context.h
+++ b/content/shell/browser/layout_test/layout_test_browser_context.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_SHELL_BROWSER_LAYOUT_TEST_BROWSER_CONTEXT_H_
-#define CONTENT_SHELL_BROWSER_LAYOUT_TEST_BROWSER_CONTEXT_H_
+#ifndef CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_BROWSER_CONTEXT_H_
+#define CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_BROWSER_CONTEXT_H_
 
 #include "base/compiler_specific.h"
 #include "content/shell/browser/shell_browser_context.h"
@@ -42,4 +42,4 @@ class LayoutTestBrowserContext : public ShellBrowserContext {
 
 }  // namespace content
 
-#endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_BROWSER_CONTEXT_H_
+#endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_LAYOUT_TEST_BROWSER_CONTEXT_H_