CachedMetadata support for ServiceWorker script.

Source/bindings/core/v8/V8ScriptRunner.h

Index: Source/bindings/core/v8/V8ScriptRunner.h
diff --git a/Source/bindings/core/v8/V8ScriptRunner.h b/Source/bindings/core/v8/V8ScriptRunner.h
index 72d061edeec82c0ffe63eac27c6a7d83b8d9eeef..978ef8aae053c82080eba75b635938891aead570 100644
--- a/Source/bindings/core/v8/V8ScriptRunner.h
+++ b/Source/bindings/core/v8/V8ScriptRunner.h
@@ -35,6 +35,7 @@
 
 namespace blink {
 
+class CachedMetadataHandler;
 class Resource;
 class ScriptResource;
 class ScriptSourceCode;
@@ -46,7 +47,11 @@ public:
     // For the following methods, the caller sites have to hold
     // a HandleScope and a ContextScope.
     static v8::Local<v8::Script> compileScript(const ScriptSourceCode&, v8::Isolate*, AccessControlStatus = SharableCrossOrigin, V8CacheOptions = V8CacheOptionsDefault);
-    static v8::Local<v8::Script> compileScript(v8::Handle<v8::String>, const String& fileName, const TextPosition&, ScriptResource*, ScriptStreamer*, v8::Isolate*, AccessControlStatus = SharableCrossOrigin, V8CacheOptions = V8CacheOptionsDefault, bool isInternalScript = false);
+    // CachedMetadataHandler is set when metadata caching is supported. For
+    // normal scripe resources, CachedMetadataHandler is from ScriptResource.
+    // For worker script, ScriptResource is null but CachedMetadataHandler may be
+    // set. When ScriptStreamer is set, ScriptResource must be set.
+    static v8::Local<v8::Script> compileScript(v8::Handle<v8::String>, const String& fileName, const TextPosition&, v8::Isolate*, ScriptResource* = nullptr, ScriptStreamer* = nullptr, CachedMetadataHandler* = nullptr, AccessControlStatus = SharableCrossOrigin, V8CacheOptions = V8CacheOptionsDefault, bool isInternalScript = false);
     static v8::Local<v8::Value> runCompiledScript(v8::Isolate*, v8::Handle<v8::Script>, ExecutionContext*);
     static v8::Local<v8::Value> compileAndRunInternalScript(v8::Handle<v8::String>, v8::Isolate*, const String& = String(), const TextPosition& = TextPosition());
     static v8::Local<v8::Value> runCompiledInternalScript(v8::Isolate*, v8::Handle<v8::Script>);
@@ -57,8 +62,8 @@ public:
     static v8::Local<v8::Object> instantiateObject(v8::Isolate*, v8::Handle<v8::Function>, int argc = 0, v8::Handle<v8::Value> argv[] = 0);
     static v8::Local<v8::Object> instantiateObjectInDocument(v8::Isolate*, v8::Handle<v8::Function>, ExecutionContext*, int argc = 0, v8::Handle<v8::Value> argv[] = 0);
 
-    static unsigned tagForParserCache(Resource*);
-    static unsigned tagForCodeCache(Resource*);
+    static unsigned tagForParserCache(CachedMetadataHandler*);
+    static unsigned tagForCodeCache(CachedMetadataHandler*);
 };
 
 } // namespace blink