Revert of Store the list of trial tokens in OriginTrialContext

third_party/WebKit/Source/build/scripts/templates/OriginTrials.h.tmpl

 {% from 'macros.tmpl' import license %}
 {{license()}}
 
 #ifndef OriginTrials_h
 #define OriginTrials_h
 
 #include "core/CoreExport.h"
+#include "platform/Supplementable.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ExecutionContext;
+class OriginTrialContext;
 
-// A namespace with dynamic tests for experimental features which can be enabled through the
-// experimental framework via origin trial tokens.
-namespace OriginTrials {
+// A class that stores dynamic tests for experimental features which can be
+// enabled through the experimental framework via API keys.
+
+class CORE_EXPORT OriginTrials final : public GarbageCollected<OriginTrials>, public Supplement<ExecutionContext> {
+    USING_GARBAGE_COLLECTED_MIXIN(OriginTrials);
+public:
+    OriginTrials(RawPtr<OriginTrialContext>);
+
+    static const char* supplementName();
+    static OriginTrials* from(ExecutionContext*);
+
     {% for feature in features %}
     {% if feature.origin_trial_feature_name %}
-    CORE_EXPORT bool {{feature.first_lowered_name}}Enabled(ExecutionContext*, String& errorMessage);
-    CORE_EXPORT bool {{feature.first_lowered_name}}Enabled(ExecutionContext*);
+
+    static bool {{feature.first_lowered_name}}Enabled(ExecutionContext* executionContext, String& errorMessage);
+    static bool {{feature.first_lowered_name}}Enabled(ExecutionContext* executionContext);
     {% endif %}
     {% endfor %}
-} // namespace OriginTrials
+
+    DECLARE_TRACE();
+
+private:
+    {% for feature in features %}
+    {% if feature.origin_trial_feature_name %}
+    bool {{feature.first_lowered_name}}EnabledImpl(String* errorMessage);
+    {% endif %}
+    {% endfor %}
+
+    Member<OriginTrialContext> m_originTrialContext;
+};
 
 } // namespace blink
 
 #endif // OriginTrials_h