[inspector] fixed all shorten-64-to-32 warnings

src/inspector/V8StackTraceImpl.cpp

Index: src/inspector/V8StackTraceImpl.cpp
diff --git a/src/inspector/V8StackTraceImpl.cpp b/src/inspector/V8StackTraceImpl.cpp
index 25a0e7caf7892fd68b21cc0a37fa66cd5eee186f..093d0ef6d317375cab561805379b11f95e2f39ce 100644
--- a/src/inspector/V8StackTraceImpl.cpp
+++ b/src/inspector/V8StackTraceImpl.cpp
@@ -45,7 +45,8 @@ void toFramesVector(v8::Local<v8::StackTrace> stackTrace,
                     size_t maxStackSize, v8::Isolate* isolate) {
   DCHECK(isolate->InContext());
   int frameCount = stackTrace->GetFrameCount();
-  if (frameCount > static_cast<int>(maxStackSize)) frameCount = maxStackSize;
+  if (frameCount > static_cast<int>(maxStackSize))
+    frameCount = static_cast<int>(maxStackSize);
   for (int i = 0; i < frameCount; i++) {
     v8::Local<v8::StackFrame> stackFrame = stackTrace->GetFrame(i);
     frames.push_back(toFrame(stackFrame));
@@ -159,8 +160,9 @@ std::unique_ptr<V8StackTraceImpl> V8StackTraceImpl::capture(
   v8::Local<v8::StackTrace> stackTrace;
   if (isolate->InContext()) {
     isolate->GetCpuProfiler()->CollectSample();
-    stackTrace = v8::StackTrace::CurrentStackTrace(isolate, maxStackSize,
-                                                   stackTraceOptions);
+    DCHECK(maxStackSize <= std::numeric_limits<int>::max());
+    stackTrace = v8::StackTrace::CurrentStackTrace(
+        isolate, static_cast<int>(maxStackSize), stackTraceOptions);
   }
   return V8StackTraceImpl::create(debugger, contextGroupId, stackTrace,
                                   maxStackSize, description);