Created a new process type called the service process to host background task...

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
===================================================================
--- chrome/common/chrome_switches.cc	(revision 46945)
+++ chrome/common/chrome_switches.cc	(working copy)
@@ -72,6 +72,9 @@
 // as a dependent process of the Chrome Frame plugin.
 const char kChromeFrame[]                   = "chrome-frame";
 
+// The unique id to be used for this cloud print proxy instance.
+const char kCloudPrintProxyId[]             = "cloud-print-proxy-id";
+
 // The Country we should use.  This is normally obtained from the operating
 // system during first run and cached in the preferences afterwards.  This is a
 // string value, the 2 letter code from ISO 3166-1.
@@ -247,6 +250,13 @@
 // Enables the benchmarking extensions.
 const char kEnableBenchmarking[]            = "enable-benchmarking";
 
+// This applies only when the process type is "service". Enables the
+// Cloud Print Proxy component within the service process.
+const char kEnableCloudPrintProxy[]         = "enable-cloud-print-proxy";
+
+// Enables the Cloud Print dialog hosting code.
+const char kEnableCloudPrint[]              = "enable-cloud-print";
+
 // Enables extension APIs that are in development.
 const char kEnableExperimentalExtensionApis[] =
     "enable-experimental-extension-apis";
@@ -677,6 +687,12 @@
 // from the omnibox.
 const char kSearchInOmniboxHint[]           = "search-in-omnibox-hint";
 
+// Causes the process to run as a service process.
+const char kServiceProcess[]                = "service";
+
+// The LSID of the account to use for the service process.
+const char kServiceAccountLsid[]            = "service-account-lsid";
+
 // See kHideIcons.
 const char kShowIcons[]                     = "show-icons";