ui: Cleanup class/struct forward declarations

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 ba97b3c4a9940536516a03d7d10b9730ac525e74..aae2215c96aea01e90044e0e1f5a8250e7310748 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -216,6 +216,9 @@ const char kDisableLocalStorage[]           = "disable-local-storage";
 // builds.
 const char kDisableLogging[]                = "disable-logging";
 
+// Disables using CODECAPI_AVLowLatencyMode when creating DXVA decoders.
+const char kDisableLowLatencyDxva[]         = "disable-low-latency-dxva";
+
 // Disables usage of the namespace sandbox.
 const char kDisableNamespaceSandbox[]       = "disable-namespace-sandbox";
 
@@ -748,6 +751,8 @@ const char kRegisterPepperPlugins[]         = "register-pepper-plugins";
 // Enables remote debug over HTTP on the specified port.
 const char kRemoteDebuggingPort[]           = "remote-debugging-port";
 
+const char kRendererClientId[] = "renderer-client-id";
+
 // The contents of this flag are prepended to the renderer command line.
 // Useful values might be "valgrind" or "xterm -e gdb --args".
 const char kRendererCmdPrefix[]             = "renderer-cmd-prefix";