Remove net-internals page for throttling, introduce flag for extension devs instead.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 21ebc8779a782f6ff742db26caed86966caed697..daaea5c4f5fb10f2e6c08f833e689aded9ab4753 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -872,9 +872,6 @@ const char kEnableTranslate[] = "translate.enabled";
 const char kPinnedTabs[] = "pinned_tabs";
 #endif
 
-// Boolean that is true when HTTP throttling is enabled.
-const char kHttpThrottlingEnabled[] = "http_throttling.enabled";
-
 // Integer containing the default Geolocation content setting.
 const char kGeolocationDefaultContentSetting[] =
     "geolocation.default_content_setting";