Support building Observatory in mojo tree

runtime/observatory/observatory.gypi

Index: runtime/observatory/observatory.gypi
diff --git a/runtime/observatory/observatory.gypi b/runtime/observatory/observatory.gypi
index 46c126c1ab7b4124dcabafe87ed53e87a785dde0..a53185fef93bb0f03f764643337f50869fbc4bb2 100644
--- a/runtime/observatory/observatory.gypi
+++ b/runtime/observatory/observatory.gypi
@@ -49,132 +49,8 @@
         '../pkg/pkg.gyp:pkg_packages#target',
       ],
       'toolsets': ['host'],
-      'sources': [
-        'lib/app.dart',
-        'lib/cpu_profile.dart',
-        'lib/dominator_tree.dart',
-        'lib/elements.dart',
-        'lib/object_graph.dart',
-        'lib/service_common.dart',
-        'lib/service_io.dart',
-        'lib/service_html.dart',
-        'lib/src/app/application.dart',
-        'lib/src/app/chart.dart',
-        'lib/src/app/location_manager.dart',
-        'lib/src/app/page.dart',
-        'lib/src/app/settings.dart',
-        'lib/src/app/target_manager.dart',
-        'lib/src/app/view_model.dart',
-        'lib/src/cpu_profile/cpu_profile.dart',
-        'lib/src/elements/action_link.dart',
-        'lib/src/elements/action_link.html',
-        'lib/src/elements/class_ref.dart',
-        'lib/src/elements/class_ref.html',
-        'lib/src/elements/class_tree.dart',
-        'lib/src/elements/class_tree.html',
-        'lib/src/elements/class_view.dart',
-        'lib/src/elements/class_view.html',
-        'lib/src/elements/code_ref.dart',
-        'lib/src/elements/code_ref.html',
-        'lib/src/elements/code_view.dart',
-        'lib/src/elements/code_view.html',
-        'lib/src/elements/context_ref.dart',
-        'lib/src/elements/context_ref.html',
-        'lib/src/elements/context_view.dart',
-        'lib/src/elements/context_view.html',
-        'lib/src/elements/cpu_profile.dart',
-        'lib/src/elements/cpu_profile.html',
-        'lib/src/elements/curly_block.dart',
-        'lib/src/elements/curly_block.html',
-        'lib/src/elements/debugger.dart',
-        'lib/src/elements/debugger.html',
-        'lib/src/elements/error_ref.dart',
-        'lib/src/elements/error_ref.html',
-        'lib/src/elements/error_view.dart',
-        'lib/src/elements/error_view.html',
-        'lib/src/elements/eval_box.dart',
-        'lib/src/elements/eval_box.html',
-        'lib/src/elements/eval_link.dart',
-        'lib/src/elements/eval_link.html',
-        'lib/src/elements/field_ref.dart',
-        'lib/src/elements/field_ref.html',
-        'lib/src/elements/field_view.dart',
-        'lib/src/elements/field_view.html',
-        'lib/src/elements/flag_list.dart',
-        'lib/src/elements/flag_list.html',
-        'lib/src/elements/function_ref.dart',
-        'lib/src/elements/function_ref.html',
-        'lib/src/elements/function_view.dart',
-        'lib/src/elements/function_view.html',
-        'lib/src/elements/general_error.dart',
-        'lib/src/elements/general_error.html',
-        'lib/src/elements/heap_map.dart',
-        'lib/src/elements/heap_map.html',
-        'lib/src/elements/heap_profile.dart',
-        'lib/src/elements/heap_profile.html',
-        'lib/src/elements/inbound_reference.dart',
-        'lib/src/elements/inbound_reference.html',
-        'lib/src/elements/instance_ref.dart',
-        'lib/src/elements/instance_ref.html',
-        'lib/src/elements/instance_view.dart',
-        'lib/src/elements/instance_view.html',
-        'lib/src/elements/io_view.dart',
-        'lib/src/elements/io_view.html',
-        'lib/src/elements/isolate_ref.dart',
-        'lib/src/elements/isolate_ref.html',
-        'lib/src/elements/isolate_summary.dart',
-        'lib/src/elements/isolate_summary.html',
-        'lib/src/elements/isolate_view.dart',
-        'lib/src/elements/isolate_view.html',
-        'lib/src/elements/json_view.dart',
-        'lib/src/elements/json_view.html',
-        'lib/src/elements/library_ref.dart',
-        'lib/src/elements/library_ref.html',
-        'lib/src/elements/library_view.dart',
-        'lib/src/elements/library_view.html',
-        'lib/src/elements/metrics.dart',
-        'lib/src/elements/metrics.html',
-        'lib/src/elements/nav_bar.dart',
-        'lib/src/elements/nav_bar.html',
-        'lib/src/elements/object_common.dart',
-        'lib/src/elements/object_common.html',
-        'lib/src/elements/object_view.dart',
-        'lib/src/elements/object_view.html',
-        'lib/src/elements/observatory_application.dart',
-        'lib/src/elements/observatory_application.html',
-        'lib/src/elements/observatory_element.dart',
-        'lib/src/elements/observatory_element.html',
-        'lib/src/elements/script_inset.dart',
-        'lib/src/elements/script_inset.html',
-        'lib/src/elements/script_ref.dart',
-        'lib/src/elements/script_ref.html',
-        'lib/src/elements/script_view.dart',
-        'lib/src/elements/script_view.html',
-        'lib/src/elements/service_error_view.dart',
-        'lib/src/elements/service_error_view.html',
-        'lib/src/elements/service_exception_view.dart',
-        'lib/src/elements/service_exception_view.html',
-        'lib/src/elements/service_ref.dart',
-        'lib/src/elements/service_ref.html',
-        'lib/src/elements/service_view.dart',
-        'lib/src/elements/service_view.html',
-        'lib/src/elements/sliding_checkbox.dart',
-        'lib/src/elements/sliding_checkbox.html',
-        'lib/src/elements/vm_connect.dart',
-        'lib/src/elements/vm_connect.html',
-        'lib/src/elements/vm_ref.dart',
-        'lib/src/elements/vm_ref.html',
-        'lib/src/elements/vm_view.dart',
-        'lib/src/elements/vm_view.html',
-        'lib/src/elements/css/shared.css',
-        'lib/src/elements/img/chromium_icon.png',
-        'lib/src/elements/img/dart_icon.png',
-        'lib/src/elements/img/isolate_icon.png',
-        'lib/src/service/object.dart',
-        'lib/tracer.dart',
-        'lib/utils.dart',
-        'web/index.html',
-        'web/main.dart',
+      'includes': [
+        'observatory_sources.gypi',
       ],
       'actions': [
         {