Add nacl_arch to data we send in omaha update checks for extensions/components

chrome/common/omaha_query_params.h

Index: chrome/common/omaha_query_params.h
diff --git a/chrome/common/omaha_query_params.h b/chrome/common/omaha_query_params.h
index 90059c617be903bdaabd0fc4269dcf269008fd4a..d58173262c0a93509caa5ead5356e28c2af6ea66 100644
--- a/chrome/common/omaha_query_params.h
+++ b/chrome/common/omaha_query_params.h
@@ -24,6 +24,20 @@ class OmahaQueryParams {
   // prod, prodchannel, prodversion.
   static std::string Get(ProdId prod);
 
+  // Returns the value we use for the "os=" parameter. Possible return values
+  // include: "mac", "win", "android", "cros", "linux", and "openbsd".
+  static const char* getOS();
+
+  // Returns the value we use for the "arch=" parameter. Possible return values
+  // include: "x86", "x64", and "arm".
+  static const char* getArch();
+
+  // Returns the value we use for the "nacl_arch" parameter. Note that this may
+  // be different from the "arch" parameter above (e.g. one may be 32-bit and
+  // the other 64-bit). Possible return values include: "x86-32", "x86-64",
+  // "arm", and "mips32".
+  static const char* getNaclArch();
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(OmahaQueryParams);
 };