Add a flag to override unlimitedStorage quota for any origins.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 272793f46a1fa6ebc1a79728a360f77fdbac71f6..1e324f34febf5b54482ea2da56167073d80823c1 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -771,4 +771,7 @@ const char kEnableVsyncNotification[] = "enable-vsync-notification";
 const char kDisableOverscrollHistoryNavigation[] =
     "disable-overscroll-history-navigation";
 
+// Allocates unlimited quota for all origins.

[kinuko, 2013/03/29 00:10:09]

'Allocates' sounds wrong to me.  Also I think we should make it clear that it's
intended to be used only for developers.  Maybe something like:

"This overrides per-origin quota settings to always return unlimited storage for
any apps/origins.  This should be used only for testing purpose."

[tzik, 2013/03/29 19:52:00]

Done.

+const char kUnlimitedStorage[] = "unlimited-storage";
+
 }  // namespace switches