CREDENTIAL: Extend FormData opacity to created Request objects

Source/modules/fetch/Body.cpp

Index: Source/modules/fetch/Body.cpp
diff --git a/Source/modules/fetch/Body.cpp b/Source/modules/fetch/Body.cpp
index bb8c6f0576bb5ec63161f8adc19317fb60b14e7e..ba3b261ee538f8ec4359a807c8225e6342b21ac7 100644
--- a/Source/modules/fetch/Body.cpp
+++ b/Source/modules/fetch/Body.cpp
@@ -104,6 +104,9 @@ public:
 
 ScriptPromise Body::arrayBuffer(ScriptState* scriptState)
 {
+    if (m_opaque)
+        return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "The body is opaque."));
+
     if (bodyUsed())
         return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "Already read"));
 
@@ -124,6 +127,9 @@ ScriptPromise Body::arrayBuffer(ScriptState* scriptState)
 
 ScriptPromise Body::blob(ScriptState* scriptState)
 {
+    if (m_opaque)
+        return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "The body is opaque."));
+
     if (bodyUsed())
         return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "Already read"));
 
@@ -140,6 +146,9 @@ ScriptPromise Body::blob(ScriptState* scriptState)
 
 ScriptPromise Body::json(ScriptState* scriptState)
 {
+    if (m_opaque)
+        return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "The body is opaque."));
+
     if (bodyUsed())
         return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "Already read"));
 
@@ -155,6 +164,9 @@ ScriptPromise Body::json(ScriptState* scriptState)
 
 ScriptPromise Body::text(ScriptState* scriptState)
 {
+    if (m_opaque)
+        return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "The body is opaque."));
+
     if (bodyUsed())
         return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "Already read"));
 
@@ -186,7 +198,10 @@ bool Body::hasPendingActivity() const
     return bodyBuffer()->hasPendingActivity();
 }
 
-Body::Body(ExecutionContext* context) : ActiveDOMObject(context), m_bodyPassed(false)
+Body::Body(ExecutionContext* context)
+    : ActiveDOMObject(context)
+    , m_bodyPassed(false)
+    , m_opaque(false)
 {
     suspendIfNeeded();
 }