Devtools: [WIP] Implement enhanced devtools extension language APIs

Source/devtools/front_end/sources/SourcesPanel.js

Index: Source/devtools/front_end/sources/SourcesPanel.js
diff --git a/Source/devtools/front_end/sources/SourcesPanel.js b/Source/devtools/front_end/sources/SourcesPanel.js
index ccbaa3a1ee8f0c5f8955142eae6c568adab35a67..3588c810a79531e99503bc85e22f07fab1c4fb0d 100644
--- a/Source/devtools/front_end/sources/SourcesPanel.js
+++ b/Source/devtools/front_end/sources/SourcesPanel.js
@@ -1369,6 +1369,44 @@ WebInspector.SourcesPanel.DebuggerPausedDetailsRevealer.prototype = {
     }
 }
 
+
+/**
+ * @constructor
+ * @implements {WebInspector.Revealer}
+ */
+WebInspector.SourcesPanel.LineMessageRevealer = function()
+{
+}
+
+WebInspector.SourcesPanel.LineMessageRevealer.prototype = {
+    /**
+     * @override
+     * @param {!Object} object
+     * @return {!Promise}
+     */
+    reveal: function(object)
+    {
+        var container = /** @type {!WebInspector.UISourceCodeMessages} */ (object);
+        if (!(container.messages() instanceof Array))
+            return Promise.reject(new Error("Internal error: messages member not an array of line message definition objects"));
+        if (!(container.source() instanceof WebInspector.UISourceCode))
+            return Promise.reject(new Error("Internal error: code member not a UISourceCode objects"));
+
+        var frame = WebInspector.SourcesPanel.instance().sourcesView().viewForFile(container.source());
+        frame.setMessagesForSource(container.messages().map(function(m){
+            return new WebInspector.SourceFrameMessage(m.text(), WebInspector.SourceFrameMessage.Level[m.kind()], {
+                line: m.location().startLine,
+                column: m.location().startColumn
+            }, {
+                line: m.location().endLine,
+                column: m.location().endColumn
+            });
+        }));
+
+        return Promise.resolve();
+    }
+}
+
 /**
  * @constructor
  * @implements {WebInspector.ActionDelegate}