Generate compiled_resources2.gyp for Polymer based on <link rel=import>s

third_party/polymer/v1_0/components-chromium/iron-dropdown/compiled_resources2.gyp

Index: third_party/polymer/v1_0/components-chromium/iron-dropdown/compiled_resources2.gyp
diff --git a/third_party/polymer/v1_0/components-chromium/iron-dropdown/compiled_resources2.gyp b/third_party/polymer/v1_0/components-chromium/iron-dropdown/compiled_resources2.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..2f6fe88fd8a109f6c7919be21ebbdffa8bc4dff0
--- /dev/null
+++ b/third_party/polymer/v1_0/components-chromium/iron-dropdown/compiled_resources2.gyp
@@ -0,0 +1,15 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+{ 'targets': [ { 'dependencies': [ u'../iron-a11y-keys-behavior/compiled_resources2.gyp:iron-a11y-keys-behavior-extracted'],
+                 'includes': [ '../../../../closure_compiler/compile_js2.gypi'],
+                 'target_name': 'iron-dropdown-scroll-manager-extracted'},
+               { 'dependencies': [ u'../iron-a11y-keys-behavior/compiled_resources2.gyp:iron-a11y-keys-behavior-extracted',
+                                   u'../iron-behaviors/compiled_resources2.gyp:iron-control-state-extracted',
+                                   u'../iron-overlay-behavior/compiled_resources2.gyp:iron-overlay-behavior-extracted',
+                                   u'../iron-resizable-behavior/compiled_resources2.gyp:iron-resizable-behavior-extracted',
+                                   u'../neon-animation/animations/compiled_resources2.gyp:opaque-animation-extracted',
+                                   u'../neon-animation/compiled_resources2.gyp:neon-animation-runner-behavior-extracted',
+                                   u'compiled_resources2.gyp:iron-dropdown-scroll-manager-extracted'],
+                 'includes': [ '../../../../closure_compiler/compile_js2.gypi'],
+                 'target_name': 'iron-dropdown-extracted'}]}