Add BlimpContents[,Observer] and BlimpNavigationController

blimp/client/core/BUILD.gn

Index: blimp/client/core/BUILD.gn
diff --git a/blimp/client/core/BUILD.gn b/blimp/client/core/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..9512eb80f210a0a50e707f94e8e7b508aa2a2dd8
--- /dev/null
+++ b/blimp/client/core/BUILD.gn
@@ -0,0 +1,38 @@
+# 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.
+
+source_set("core") {
+  visibility = [ "//blimp/*" ]
+
+  sources = [
+    "blimp_contents_impl.cc",
+    "blimp_contents_impl.h",
+    "blimp_navigation_controller_delegate.h",
+    "blimp_navigation_controller_impl.cc",
+    "blimp_navigation_controller_impl.h",
+  ]
+
+  deps = [
+    "//base",
+    "//blimp/client/core/public",
+    "//url",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+
+  sources = [
+    "blimp_contents_impl_unittest.cc",
+    "blimp_navigation_controller_impl_unittest.cc",
+  ]
+
+  deps = [
+    "//base",
+    "//blimp/client/core",
+    "//blimp/client/core/public",
+    "//testing/gtest",
+    "//url",
+  ]
+}