Add ReadableStream operations to use it from Fetch API

third_party/WebKit/Source/core/streams/ReadableStreamOperations.cpp

Index: third_party/WebKit/Source/core/streams/ReadableStreamOperations.cpp
diff --git a/third_party/WebKit/Source/core/streams/ReadableStreamOperations.cpp b/third_party/WebKit/Source/core/streams/ReadableStreamOperations.cpp
index 1410d5d68602e6bbafb093798dd817b52c0e40b4..612a1ad4445b1351a4895226429e19b029497da9 100644
--- a/third_party/WebKit/Source/core/streams/ReadableStreamOperations.cpp
+++ b/third_party/WebKit/Source/core/streams/ReadableStreamOperations.cpp
@@ -65,6 +65,14 @@ bool ReadableStreamOperations::isDisturbed(ScriptState* scriptState, ScriptValue
     return V8ScriptRunner::callExtraOrCrash(scriptState, "IsReadableStreamDisturbed", args)->ToBoolean()->Value();
 }
 
+void ReadableStreamOperations::setDisturbed(ScriptState* scriptState, ScriptValue stream)
+{
+    ASSERT(isReadableStream(scriptState, stream));
+
+    v8::Local<v8::Value> args[] = { stream.v8Value() };
+    V8ScriptRunner::callExtraOrCrash(scriptState, "SetReadableStreamDisturbed", args);
+}
+
 bool ReadableStreamOperations::isLocked(ScriptState* scriptState, ScriptValue stream)
 {
     ASSERT(isReadableStream(scriptState, stream));
@@ -73,6 +81,30 @@ bool ReadableStreamOperations::isLocked(ScriptState* scriptState, ScriptValue st
     return V8ScriptRunner::callExtraOrCrash(scriptState, "IsReadableStreamLocked", args)->ToBoolean()->Value();
 }
 
+bool ReadableStreamOperations::isReadable(ScriptState* scriptState, ScriptValue stream)
+{
+    ASSERT(isReadableStream(scriptState, stream));
+
+    v8::Local<v8::Value> args[] = { stream.v8Value() };
+    return V8ScriptRunner::callExtraOrCrash(scriptState, "IsReadableStreamReadable", args)->ToBoolean()->Value();
+}
+
+bool ReadableStreamOperations::isClosed(ScriptState* scriptState, ScriptValue stream)
+{
+    ASSERT(isReadableStream(scriptState, stream));
+
+    v8::Local<v8::Value> args[] = { stream.v8Value() };
+    return V8ScriptRunner::callExtraOrCrash(scriptState, "IsReadableStreamClosed", args)->ToBoolean()->Value();
+}
+
+bool ReadableStreamOperations::isErrored(ScriptState* scriptState, ScriptValue stream)
+{
+    ASSERT(isReadableStream(scriptState, stream));
+
+    v8::Local<v8::Value> args[] = { stream.v8Value() };
+    return V8ScriptRunner::callExtraOrCrash(scriptState, "IsReadableStreamErrored", args)->ToBoolean()->Value();
+}
+
 bool ReadableStreamOperations::isReadableStreamReader(ScriptState* scriptState, ScriptValue value)
 {
     ASSERT(!value.isEmpty());