Split //blimp/client/core to relevant parts.

blimp/client/core/contents/BUILD.gn

+# 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.
+
+if (is_android) {
+  import("//build/config/android/config.gni")
+  import("//build/config/android/rules.gni")
+}
+
+source_set("contents") {
+  visibility = [ "//blimp/client/*" ]
+
+  sources = [
+    "blimp_contents_impl.cc",
+    "blimp_contents_impl.h",
+    "blimp_navigation_controller_delegate.h",
+    "blimp_navigation_controller_impl.cc",
+    "blimp_navigation_controller_impl.h",
+  ]
+
+  public_deps = [
+    "//base",
+    "//blimp/client/public:public_headers",
+    "//url",
+  ]
+
+  if (is_android) {
+    sources += [
+      "android/blimp_contents_factory.cc",
+      "android/blimp_contents_factory.h",
+      "android/blimp_contents_impl_android.cc",
+      "android/blimp_contents_impl_android.h",
+      "android/blimp_contents_jni_registrar.cc",
+      "android/blimp_contents_jni_registrar.h",
+      "android/blimp_contents_observer_proxy.cc",
+      "android/blimp_contents_observer_proxy.h",
+      "android/blimp_navigation_controller_impl_android.cc",
+      "android/blimp_navigation_controller_impl_android.h",
+    ]
+
+    deps = [
+      ":jni_headers",
+    ]
+  }
+}
+
+source_set("unit_tests") {
+  visibility = [ "//blimp/client/core:unit_tests" ]
+
+  testonly = true
+
+  sources = [
+    "blimp_contents_impl_unittest.cc",
+    "blimp_navigation_controller_impl_unittest.cc",
+  ]
+
+  deps = [
+    ":contents",
+    "//base",
+    "//blimp/client/public:public_headers",
+    "//testing/gtest",
+    "//url",
+  ]
+}
+
+if (is_android) {
+  android_library("contents_java") {
+    visibility = [ "//blimp/client/*" ]
+
+    java_files = [
+      "android/java/src/org/chromium/blimp/core/contents/BlimpContentsFactory.java",
+      "android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java",
+      "android/java/src/org/chromium/blimp/core/contents/BlimpContentsObserverProxy.java",
+      "android/java/src/org/chromium/blimp/core/contents/BlimpNavigationControllerImpl.java",
+    ]
+
+    deps = [
+      "//base:base_java",
+      "//blimp/client/public:public_headers_java",
+    ]
+  }
+
+  generate_jni("jni_headers") {
+    visibility = [ ":*" ]
+
+    sources = [
+      "android/java/src/org/chromium/blimp/core/contents/BlimpContentsFactory.java",
+      "android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java",
+      "android/java/src/org/chromium/blimp/core/contents/BlimpContentsObserverProxy.java",
+      "android/java/src/org/chromium/blimp/core/contents/BlimpNavigationControllerImpl.java",
+    ]
+
+    jni_package = "blimp/client/core/contents"
+  }
+}