mus: Make --use-mus-in-renderer the default for --mash.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 69e3577fcd3cb61fffa7133de12e680f0687feb2..6d1f4a32610b68e601ebc24fdd1d0dd7a73fa6d5 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -675,6 +675,9 @@ const char kNoReferrers[]                   = "no-referrers";
 // Disables the sandbox for all process types that are normally sandboxed.
 const char kNoSandbox[]                     = "no-sandbox";
 
+// Do not use the mojo UI Service in the Chrome render process.
+const char kNoUseMusInRenderer[] = "no-use-mus-in-renderer";
+
 // Disables the use of a zygote process for forking child processes. Instead,
 // child processes will be forked and exec'd directly. Note that --no-sandbox
 // should also be used together with this flag because the sandbox needs the
@@ -883,9 +886,6 @@ const char kUIPrioritizeInGpuProcess[] = "ui-prioritize-in-gpu-process";
 // streams (e.g. WebRTC). Works with --use-fake-device-for-media-stream.
 const char kUseFakeUIForMediaStream[]     = "use-fake-ui-for-media-stream";
 
-// Use the Mandoline UI Service in the Chrome render process.
-const char kUseMusInRenderer[] = "use-mus-in-renderer";
-
 // Texture target for CHROMIUM_image backed content textures.
 const char kContentImageTextureTarget[] = "content-image-texture-target";