[DevTools] Introduce unserializableValue in RemoteObject.

third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js b/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
index 3827720be636853002c08a0bad049ec27d91cdfb..f73455959f79b26777661187d0d937b9157543db 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/RuntimeModel.js
@@ -150,7 +150,7 @@ WebInspector.RuntimeModel.prototype = {
     createRemoteObject: function(payload)
     {
         console.assert(typeof payload === "object", "Remote object payload should only be an object");
-        return new WebInspector.RemoteObjectImpl(this.target(), payload.objectId, payload.type, payload.subtype, payload.value, payload.description, payload.preview, payload.customPreview);
+        return new WebInspector.RemoteObjectImpl(this.target(), payload.objectId, payload.type, payload.subtype, payload.value, payload.unserializableValue, payload.description, payload.preview, payload.customPreview);
     },
 
     /**
@@ -160,16 +160,31 @@ WebInspector.RuntimeModel.prototype = {
      */
     createScopeRemoteObject: function(payload, scopeRef)
     {
-        return new WebInspector.ScopeRemoteObject(this.target(), payload.objectId, scopeRef, payload.type, payload.subtype, payload.value, payload.description, payload.preview);
+        return new WebInspector.ScopeRemoteObject(this.target(), payload.objectId, scopeRef, payload.type, payload.subtype, payload.value, payload.unserializableValue, payload.description, payload.preview);
     },
 
     /**
-     * @param {number|string|boolean} value
+     * @param {number|string|boolean|undefined} value
      * @return {!WebInspector.RemoteObject}
      */
     createRemoteObjectFromPrimitiveValue: function(value)
     {
-        return new WebInspector.RemoteObjectImpl(this.target(), undefined, typeof value, undefined, value);
+        var type = typeof value;
+        var unserializableValue = undefined;
+        if (typeof value === "number") {
+            var description = String(value);
+            if (value === 0 && 1 / value < 0)
+                unserializableValue = RuntimeAgent.UnserializableValue.Negative0;
+            if (description === "NaN")
+                unserializableValue = RuntimeAgent.UnserializableValue.NaN;
+            if (description === "Infinity")
+                unserializableValue = RuntimeAgent.UnserializableValue.Infinity;
+            if (description === "-Infinity")
+                unserializableValue = RuntimeAgent.UnserializableValue.NegativeInfinity;
+            if (typeof unserializableValue !== "undefined")
+                value = undefined;
+        }
+        return new WebInspector.RemoteObjectImpl(this.target(), undefined, type, undefined, value, unserializableValue);
     },
 
     /**