Adds browser preferences to configure first-run flow on Windows 8.

chrome/installer/util/master_preferences_constants.h

Index: chrome/installer/util/master_preferences_constants.h
diff --git a/chrome/installer/util/master_preferences_constants.h b/chrome/installer/util/master_preferences_constants.h
index 8a6f6c22362d03ceb58b2775cfc921c89dfd164d..a9bfa494379c6dd2fc080616eb78f3de326ab352 100644
--- a/chrome/installer/util/master_preferences_constants.h
+++ b/chrome/installer/util/master_preferences_constants.h
@@ -70,6 +70,9 @@ extern const char kMsi[];
 extern const char kMultiInstall[];
 // Boolean. Show EULA dialog before install.
 extern const char kRequireEula[];
+// Boolean. Indicates that the first-run 'set-as-default' dialog should not be
+// shown. Relevant in Windows 8+ context only.

[grt (UTC plus 2), 2012/07/25 10:54:56]

please mention in this comment that the default browser butterbar will appear on
first run when this is set to true.

[motek., 2012/07/25 12:10:40]

Done.

+extern const char kSuppressFirstRunDefaultBrowserPrompt[];
 // Boolean. Install Chrome to system wise location. Cmd line override present.
 extern const char kSystemLevel[];
 // Boolean. Run installer in verbose mode. Cmd line override present.