Move layout-test-specific switches from shell_switches to layout_test_switches.h

content/shell/common/shell_switches.h

 // 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.
 
 // Defines all the "content_shell" command-line switches.
 
 #ifndef CONTENT_SHELL_COMMON_SHELL_SWITCHES_H_
 #define CONTENT_SHELL_COMMON_SHELL_SWITCHES_H_
 
 #include <string>
 #include <vector>
 
 namespace switches {
 
-extern const char kAllowExternalPages[];
-extern const char kCheckLayoutTestSysDeps[];
 extern const char kContentBrowserTest[];
 extern const char kContentShellDataPath[];
 extern const char kCrashDumpsDir[];
-extern const char kCrashOnFailure[];
-extern const char kEnableAccelerated2DCanvas[];
-extern const char kEnableFontAntialiasing[];
-extern const char kAlwaysUseComplexText[];
-extern const char kEnableLeakDetection[];
-extern const char kEncodeBinary[];
-extern const char kExposeInternalsForTesting[];
 extern const char kIsolateSitesForTesting[];
 extern const char kRegisterFontFiles[];
-extern const char kRunLayoutTest[];
-extern const char kStableReleaseMode[];
 extern const char kContentShellHostWindowSize[];
 
 // Returns list of extra font files to be made accessible to the renderer.
 std::vector<std::string> GetSideloadFontFiles();
 
+// Tells if content shell is running layout tests.
+// TODO(lukasza): The function below somewhat violates the layering (by
+// enabling shell -> layout_tests dependency) but at least narrows the extent of
+// the dependency to a single switch...
+bool IsRunLayoutTestSwitchPresent();
+
 }  // namespace switches
 
 #endif  // CONTENT_SHELL_COMMON_SHELL_SWITCHES_H_