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Unified Diff: third_party/WebKit/Source/core/experiments/Experiments.h

Issue 1404733003: Implement stub of Blink API to check for enabled experiments (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 2 months ago
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Index: third_party/WebKit/Source/core/experiments/Experiments.h
diff --git a/third_party/WebKit/Source/core/experiments/Experiments.h b/third_party/WebKit/Source/core/experiments/Experiments.h
new file mode 100644
index 0000000000000000000000000000000000000000..6f6e758fc85c630da96f9776334e5f24d6345ce5
--- /dev/null
+++ b/third_party/WebKit/Source/core/experiments/Experiments.h
@@ -0,0 +1,39 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef Experiments_h
+#define Experiments_h
+
+#include "core/CoreExport.h"
+#include "core/dom/DOMException.h"
+#include "core/dom/ExecutionContext.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+// The Experimental Framework (EF) provides limited access to experimental APIs,
+// on a per-origin basis. This class provides an interface to API implementers,
+// for checking if the experimental API should be enabled for the current
+// context.
+//
+// Experimental APIs are defined by string names, provided by the implementers.
+// The EF code does not maintain an enum or constant list for experiment names.
+// Instead, the EF validates the name provided by the API implementation against
+// any provided API keys.
+// TODO(chasej): Link to documentation, or provide more detail on keys, .etc
+class CORE_EXPORT Experiments {
+public:
+ static bool isApiEnabled(ExecutionContext*, const String& apiName);
+ // Creates a NotSupportedError exception with a message explaining to
+ // external developers why the API is disabled and how to join API
+ // experiments.
+ static DOMException* createApiDisabledException(const String& apiName);
+
+private:
+ explicit Experiments();
+};
+
+} // namespace blink
+
+#endif // Experiments_h
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