Move chrome/common/extensions/background_info.h to src/extensions

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 a929373f2c81f08b997fab05993a7a150f34471f..6b364cf2b9a33616009d9f222d62f05b56b2b62f 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -34,9 +34,6 @@ const char kAllowCrossOriginAuthPrompt[]    = "allow-cross-origin-auth-prompt";
 // directories. This switch re-enables file:// for testing.
 const char kAllowFileAccess[]               = "allow-file-access";
 
-// Allows non-https URL for background_page for hosted apps.
-const char kAllowHTTPBackgroundPage[]       = "allow-http-background-page";
-
 // Allow non-secure origins to use the screen capture API.
 const char kAllowHttpScreenCapture[] = "allow-http-screen-capture";