Revert of Chromium-side patch to rename "--dump-render-tree" to "--run-layout-test".

content/shell/common/shell_switches.cc

Index: content/shell/common/shell_switches.cc
diff --git a/content/shell/common/shell_switches.cc b/content/shell/common/shell_switches.cc
index d2f0a2942caee7db227c496e95bdd135f16040cd..6a7a48bd5e57b62f21bf2baae63f75f92fc0f620 100644
--- a/content/shell/common/shell_switches.cc
+++ b/content/shell/common/shell_switches.cc
@@ -25,9 +25,7 @@
 // causes the leak detector to cause immediate crash when found leak.
 const char kCrashOnFailure[] = "crash-on-failure";
 
-// Request the render trees of pages to be dumped as text once they have
-// finished loading. Note that this switch has been deprecated, and the
-// identically functioning |kRunLayoutTest| switch should be used instead.
+// Request pages to be dumped as text once they finished loading.
 const char kDumpRenderTree[] = "dump-render-tree";
 
 // Expose window.ipcTester object for testing
@@ -55,13 +53,9 @@
 // with a semicolon (;).
 const char kRegisterFontFiles[] = "register-font-files";
 
-// Request the render trees of pages to be dumped as text once they have
-// finished loading.
-const char kRunLayoutTest[] = "run-layout-test";
-
 // This makes us disable some web-platform runtime features so that we test
 // content_shell as if it was a stable release. It is only followed when
-// kRunLayoutTest is set. For the features' level, see
+// kDumpRenderTree is set. For the features' level, see
 // http://dev.chromium.org/blink/runtime-enabled-features.
 const char kStableReleaseMode[] = "stable-release-mode";