Removed Polymer from Observatory deps

packages/web_components/lib/build/html_import_annotation_recorder.dart

Index: packages/web_components/lib/build/html_import_annotation_recorder.dart
diff --git a/packages/web_components/lib/build/html_import_annotation_recorder.dart b/packages/web_components/lib/build/html_import_annotation_recorder.dart
index ba5d2abad5a99d35db6753f174c3bfba8e45399a..5f2a3200889bcdf86d5688ff44d9861719d5f20e 100644
--- a/packages/web_components/lib/build/html_import_annotation_recorder.dart
+++ b/packages/web_components/lib/build/html_import_annotation_recorder.dart
@@ -3,10 +3,7 @@
 // BSD-style license that can be found in the LICENSE file.
 library web_components.build.html_import_recorder_inliner;
 
-import 'package:analyzer/analyzer.dart';
-import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
-import 'package:barback/barback.dart';
 import 'package:initialize/transformer.dart';
 import 'package:path/path.dart' as path;
 import '../src/normalize_path.dart';
@@ -21,8 +18,6 @@ class HtmlImportAnnotationRecorder implements InitializerPlugin {
   /// All the normalized import paths that were seen.
   final Set<String> importPaths = new Set<String>();
 
-  TransformLogger _logger;
-
   HtmlImportAnnotationRecorder();
 
   /// Applies to anything named `HtmlImport` which annotates a library.
@@ -35,8 +30,11 @@ class HtmlImportAnnotationRecorder implements InitializerPlugin {
     } else if (annotationElement is PropertyAccessorElement) {
       type = annotationElement.variable.propagatedType;
       if (type == null) {
-        type = pluginData.resolver.evaluateConstant(annotationElement.library,
-            pluginData.initializer.annotationNode.name).value.type;
+        type = pluginData.resolver
+            .evaluateConstant(annotationElement.library,
+                pluginData.initializer.annotationNode.name)
+            .value
+            .type;
       }
     } else {
       logger.error('Unsupported annotation type. Only constructors and '
@@ -60,18 +58,21 @@ class HtmlImportAnnotationRecorder implements InitializerPlugin {
     var annotationElement = pluginData.initializer.annotationElement;
     var element = pluginData.initializer.targetElement as LibraryElement;
     var resolver = pluginData.resolver;
-    var libraryDirective =
-        pluginData.initializer.targetNode.parent.parent as LibraryDirective;
 
     var originalImportPath;
     if (annotationElement.element is PropertyAccessorElement) {
-      originalImportPath = resolver.evaluateConstant(
-              element.library, annotation.name).value.fields[
-          'filePath'].stringValue;
+      originalImportPath = resolver
+          .evaluateConstant(element.library, annotation.name)
+          .value
+          .fields['filePath']
+          .toStringValue();
     } else {
       assert(annotationElement.element is ConstructorElement);
-      originalImportPath = resolver.evaluateConstant(element.library,
-          annotation.arguments.arguments.first).value.stringValue;
+      originalImportPath = resolver
+          .evaluateConstant(
+              element.library, annotation.arguments.arguments.first)
+          .value
+          .toStringValue();
     }
 
     var libPath;