[DevTools] Improve context and target naming.

third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js

Index: third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js
diff --git a/third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js b/third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js
index a7436d5c505ba9c66b9712175e72f9dd6e057f53..aebb00f4cc4785d4dcde21709cd03ab96ba6531f 100644
--- a/third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js
+++ b/third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js
@@ -33,21 +33,32 @@ Console.ConsoleContextSelector = class {
    * @return {string}
    */
   _titleFor(executionContext) {
-    var result;
-    if (executionContext.isDefault) {
-      if (executionContext.frameId) {
-        var resourceTreeModel = SDK.ResourceTreeModel.fromTarget(executionContext.target());
-        var frame = resourceTreeModel && resourceTreeModel.frameForId(executionContext.frameId);
-        result = frame ? frame.displayName() : executionContext.label();
-      } else {
-        result = executionContext.target().decorateLabel(executionContext.label());
+    var target = executionContext.target();

[pfeldman, 2017/01/21 02:21:24]

According to the new guidelines, you should use const here.

[pfeldman, 2017/01/21 02:22:49]

My bad, it should be let.

+    var depth = 0;
+    var label = executionContext.label() ? target.decorateLabel(executionContext.label()) : '';
+    if (!executionContext.isDefault)
+      depth++;
+    if (executionContext.frameId) {
+      var resourceTreeModel = SDK.ResourceTreeModel.fromTarget(target);
+      var frame = resourceTreeModel && resourceTreeModel.frameForId(executionContext.frameId);
+      if (frame) {
+        label = label || frame.displayName();
+        while (frame.parentFrame) {
+          depth++;
+          frame = frame.parentFrame;
+        }
       }
-    } else {
-      result = '\u00a0\u00a0\u00a0\u00a0' + (executionContext.label() || executionContext.origin);
+    }
+    label = label || executionContext.origin;
+    while (target.parentTarget()) {
+      if (target.parentTarget().hasJSCapability())

[pfeldman, 2017/01/21 02:27:31]

Special case service workers?

[dgozman, 2017/01/23 19:20:35]

Done.

+        depth++;
+      target = target.parentTarget();
     }
 
+    var prefix = new Array(4 * depth + 1).join('\u00a0');
     var maxLength = 50;
-    return result.trimMiddle(maxLength);
+    return (prefix + label).trimMiddle(maxLength);
   }
 
   /**