DevTools: Add timestamp support in the console

Source/devtools/front_end/ConsoleModel.js

Index: Source/devtools/front_end/ConsoleModel.js
diff --git a/Source/devtools/front_end/ConsoleModel.js b/Source/devtools/front_end/ConsoleModel.js
index a97dcff6092ed219b0f6fe167dae8639dd2846d6..3760056de96fc38ffe473d521f2dff60bf5ef07c 100644
--- a/Source/devtools/front_end/ConsoleModel.js
+++ b/Source/devtools/front_end/ConsoleModel.js
@@ -169,9 +169,10 @@ WebInspector.ConsoleModel.prototype = {
  * @param {!NetworkAgent.RequestId=} requestId
  * @param {!Array.<!RuntimeAgent.RemoteObject>=} parameters
  * @param {!Array.<!ConsoleAgent.CallFrame>=} stackTrace
+ * @param {number=} timestamp
  * @param {boolean=} isOutdated
  */
-WebInspector.ConsoleMessage = function(source, level, text, type, url, line, column, repeatCount, requestId, parameters, stackTrace, isOutdated)
+WebInspector.ConsoleMessage = function(source, level, text, type, url, line, column, repeatCount, requestId, parameters, stackTrace, timestamp, isOutdated)
 {
     this.source = source;
     this.level = level;
@@ -182,6 +183,7 @@ WebInspector.ConsoleMessage = function(source, level, text, type, url, line, col
     this.column = column || 0;
     this.parameters = parameters;
     this.stackTrace = stackTrace;
+    this.timestamp = timestamp || Date.now() / 1000;
     this.isOutdated = isOutdated;
 
     repeatCount = repeatCount || 1;
@@ -205,7 +207,7 @@ WebInspector.ConsoleMessage.prototype = {
      */
     clone: function()
     {
-        return new WebInspector.ConsoleMessage(this.source, this.level, this.text, this.type, this.url, this.line, this.column, this.repeatCount, this.requestId, this.parameters, this.stackTrace, this.isOutdated);
+        return new WebInspector.ConsoleMessage(this.source, this.level, this.text, this.type, this.url, this.line, this.column, this.repeatCount, this.requestId, this.parameters, this.stackTrace, this.timestamp, this.isOutdated);
     },
 
     /**
@@ -233,6 +235,7 @@ WebInspector.ConsoleMessage.prototype = {
             }
         }
 
+        // Timestamp doesn't affect equality.
         return (this.source === msg.source)
             && (this.type === msg.type)
             && (this.level === msg.level)
@@ -311,6 +314,7 @@ WebInspector.ConsoleDispatcher.prototype = {
             payload.networkRequestId,
             payload.parameters,
             payload.stackTrace,
+            payload.timestamp,
             this._console._enablingConsole);
         this._console.addMessage(consoleMessage, true);
     },