Move Declarative Web Request API out of experimental and make it a feature

chrome/browser/extensions/api/declarative/declarative_api.h

Index: chrome/browser/extensions/api/declarative/declarative_api.h
diff --git a/chrome/browser/extensions/api/declarative/declarative_api.h b/chrome/browser/extensions/api/declarative/declarative_api.h
index fc198449e666a2860ff1bfed1e282a7bd764e34b..c73225fd730b9f45d29469e49404ca7eba76d0d8 100644
--- a/chrome/browser/extensions/api/declarative/declarative_api.h
+++ b/chrome/browser/extensions/api/declarative/declarative_api.h
@@ -31,19 +31,19 @@ class RulesFunction : public AsyncExtensionFunction {
 class AddRulesFunction : public RulesFunction {
  public:
   virtual bool RunImplOnCorrectThread() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("experimental.declarative.addRules");
+  DECLARE_EXTENSION_FUNCTION_NAME("declarative.addRules");
 };
 
 class RemoveRulesFunction : public RulesFunction {
  public:
   virtual bool RunImplOnCorrectThread() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("experimental.declarative.removeRules");
+  DECLARE_EXTENSION_FUNCTION_NAME("declarative.removeRules");
 };
 
 class GetRulesFunction : public RulesFunction {
  public:
   virtual bool RunImplOnCorrectThread() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("experimental.declarative.getRules");
+  DECLARE_EXTENSION_FUNCTION_NAME("declarative.getRules");
 };
 
 }  // namespace extensions