[DevTools] Add missing MicrotasksScope to debugger.

third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp

Index: third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp
diff --git a/third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp b/third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp
index aa2e1f6e9f59ea736a8525889e559a016743b857..decabcf4ca003457bd155530d80051c386f49c2e 100644
--- a/third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp
+++ b/third_party/WebKit/Source/platform/v8_inspector/V8DebuggerImpl.cpp
@@ -60,6 +60,7 @@ static bool inLiveEditScope = false;
 
 v8::MaybeLocal<v8::Value> V8DebuggerImpl::callDebuggerMethod(const char* functionName, int argc, v8::Local<v8::Value> argv[])
 {
+    v8::MicrotasksScope microtasks(m_isolate, v8::MicrotasksScope::kDoNotRunMicrotasks);
     v8::Local<v8::Object> debuggerScript = m_debuggerScript.Get(m_isolate);
     v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(debuggerScript->Get(v8InternalizedString(functionName)));
     ASSERT(m_isolate->InContext());
@@ -215,6 +216,7 @@ void V8DebuggerImpl::getCompiledScripts(int contextGroupId, protocol::Vector<V8D
     v8::Local<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast(debuggerScript->Get(v8InternalizedString("getScripts")));
     v8::Local<v8::Value> argv[] = { v8::Integer::New(m_isolate, contextGroupId) };
     v8::Local<v8::Value> value;
+    v8::MicrotasksScope microtasks(m_isolate, v8::MicrotasksScope::kDoNotRunMicrotasks);
     if (!getScriptsFunction->Call(debuggerContext(), debuggerScript, WTF_ARRAY_LENGTH(argv), argv).ToLocal(&value))
         return;
     ASSERT(value->IsArray());
@@ -609,6 +611,7 @@ v8::Local<v8::Value> V8DebuggerImpl::callInternalGetterFunction(v8::Local<v8::Ob
 {
     v8::Local<v8::Value> getterValue = object->Get(v8InternalizedString(functionName));
     ASSERT(!getterValue.IsEmpty() && getterValue->IsFunction());
+    v8::MicrotasksScope microtasks(m_isolate, v8::MicrotasksScope::kDoNotRunMicrotasks);
     return v8::Local<v8::Function>::Cast(getterValue)->Call(m_isolate->GetCurrentContext(), object, 0, 0).ToLocalChecked();
 }