binding: Retires ExceptionState::throwIfNeeded().

third_party/WebKit/Source/bindings/core/v8/PrivateScriptRunner.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "bindings/core/v8/PrivateScriptRunner.h"
 
 #include "bindings/core/v8/DOMWrapperWorld.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8PerContextData.h"
@@ skipping 249 matching lines @@
         messageString = toCoreString(v8::Local<v8::String>::Cast(message));
 
     String exceptionName = toCoreString(v8::Local<v8::String>::Cast(name));
     if (exceptionName == "PrivateScriptException") {
         v8::Local<v8::Value> code = exceptionObject->Get(context, v8String(isolate, "code")).ToLocalChecked();
         RELEASE_ASSERT(code->IsInt32());
         int exceptionCode = code.As<v8::Int32>()->Value();
         ScriptState::Scope scope(scriptStateInUserScript);
         ExceptionState exceptionState(errorContext, propertyName, interfaceName, context->Global(), scriptStateInUserScript->isolate());
         exceptionState.throwDOMException(exceptionCode, messageString);
-        exceptionState.throwIfNeeded();
         return;
     }
 
     // Standard JS errors thrown by a private script are treated as real errors
     // of the private script and crash the renderer, except for a stack overflow
     // error. A stack overflow error can happen in a valid private script
     // if user's script can create a recursion that involves the private script.
     if (exceptionName == "RangeError" && messageString.contains("Maximum call stack size exceeded")) {
         ScriptState::Scope scope(scriptStateInUserScript);
         ExceptionState exceptionState(errorContext, propertyName, interfaceName, scriptStateInUserScript->context()->Global(), scriptStateInUserScript->isolate());
         exceptionState.throwDOMException(V8RangeError, messageString);
-        exceptionState.throwIfNeeded();
         return;
     }
 
     fprintf(stderr, "Private script error: %s was thrown.\n", exceptionName.utf8().data());
     dumpV8Message(context, tryCatchMessage);
     RELEASE_NOTREACHED();
 }
 
 } // namespace
 
@@ skipping 61 matching lines @@
     v8::Local<v8::Value> result;
     if (!V8ScriptRunner::callFunction(v8::Local<v8::Function>::Cast(method), scriptState->getExecutionContext(), holder, argc, argv, scriptState->isolate()).ToLocal(&result)) {
         rethrowExceptionInPrivateScript(scriptState->isolate(), block, scriptStateInUserScript, ExceptionState::ExecutionContext, methodName, className);
         block.ReThrow();
         return v8::Local<v8::Value>();
     }
     return result;
 }
 
 } // namespace blink