[Fetch API] Reflect spec changes of bodyUsed property

third_party/WebKit/Source/modules/fetch/Body.h

Index: third_party/WebKit/Source/modules/fetch/Body.h
diff --git a/third_party/WebKit/Source/modules/fetch/Body.h b/third_party/WebKit/Source/modules/fetch/Body.h
index 1e9ee5374eb14ee5d5a8cdba5b51b8c763dc7da7..16972505f5ad2e935a97f730ff9f83d6e5413b07 100644
--- a/third_party/WebKit/Source/modules/fetch/Body.h
+++ b/third_party/WebKit/Source/modules/fetch/Body.h
@@ -35,12 +35,12 @@ public:
     ScriptPromise formData(ScriptState*);
     ScriptPromise json(ScriptState*);
     ScriptPromise text(ScriptState*);
-    ReadableByteStream* body();
+    ReadableByteStream* bodyWithUseCounter();
     virtual BodyStreamBuffer* bodyBuffer() = 0;
     virtual const BodyStreamBuffer* bodyBuffer() const = 0;
 
-    bool bodyUsed();
-    void setBodyPassed() { m_bodyPassed = true; }
+    virtual bool bodyUsed();
+    bool isBodyLocked();
 
     // ActiveDOMObject override.
     bool hasPendingActivity() const override;
@@ -51,9 +51,10 @@ public:
     }
 
 private:
+    ReadableByteStream* body();
     virtual String mimeType() const = 0;
 
-    bool m_bodyPassed;
+    bool m_opaque;
 };
 
 } // namespace blink