content: Remove blimp compositing dependencies.

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 1a2e4327406c711e0523f5f5dd02769d6d3e0147..1bb644606bd6368e7cd07ca18ceb87cd4a2c781d 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -891,9 +891,6 @@ const char kVideoImageTextureTarget[] = "video-image-texture-target";
 // Set when Chromium should use a mobile user agent.
 const char kUseMobileUserAgent[] = "use-mobile-user-agent";
 
-// Use remote compositor for the renderer.
-const char kUseRemoteCompositing[] = "use-remote-compositing";
-
 // The contents of this flag are prepended to the utility process command line.
 // Useful values might be "valgrind" or "xterm -e gdb --args".
 const char kUtilityCmdPrefix[]              = "utility-cmd-prefix";