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

src/inspector/v8-internal-value-type.cc

Index: src/inspector/v8-internal-value-type.cc
diff --git a/src/inspector/v8-internal-value-type.cc b/src/inspector/v8-internal-value-type.cc
index 75d343a9b6403fa11e8574b0ce9540a9994cb8ae..cde8bc9f7f9957a0652047b39ac0827b482ec280 100644
--- a/src/inspector/v8-internal-value-type.cc
+++ b/src/inspector/v8-internal-value-type.cc
@@ -49,7 +49,7 @@ bool markArrayEntriesAsInternal(v8::Local<v8::Context> context,
   v8::Isolate* isolate = context->GetIsolate();
   v8::Local<v8::Private> privateValue = internalSubtypePrivate(isolate);
   v8::Local<v8::String> subtype = subtypeForInternalType(isolate, type);
-  for (size_t i = 0; i < array->Length(); ++i) {
+  for (uint32_t i = 0; i < array->Length(); ++i) {
     v8::Local<v8::Value> entry;
     if (!array->Get(context, i).ToLocal(&entry) || !entry->IsObject())
       return false;