DevTools: allow passing command line flags into devtools front-end.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 36b6d48046a2c14c0d9c31a3c0636104796fc7ef..5a58441c68e3e641d49d4687358d5307eed1e598 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -153,6 +153,9 @@ const char kDebugEnableFrameToggle[]        = "debug-enable-frame-toggle";
 // apps.
 const char kDebugPackedApps[]               = "debug-packed-apps";
 
+// Passes command line parameters to the DevTools front-end.
+const char kDevToolsFlags[]                 = "devtools-flags";
+
 // Triggers a plethora of diagnostic modes.
 const char kDiagnostics[]                   = "diagnostics";