Extract mojo_base.gyp from mojo.gyp

mojo/mojo_apps.gypi

Index: mojo/mojo_apps.gypi
diff --git a/mojo/mojo_apps.gypi b/mojo/mojo_apps.gypi
index 8460979f752d4a4ba08de94b6ea4bbfeea2e39d6..934964f0bf4e0a56ef717a314086007ce4689f92 100644
--- a/mojo/mojo_apps.gypi
+++ b/mojo/mojo_apps.gypi
@@ -8,17 +8,17 @@
         '../gin/gin.gyp:gin',
         '../ui/gl/gl.gyp:gl',
         '../v8/tools/gyp/v8.gyp:v8',
-        'mojo_common_lib',
-        'mojo_environment_chromium',
+        'mojo_base.gyp:mojo_common_lib',
+        'mojo_base.gyp:mojo_environment_chromium',
+        'mojo_base.gyp:mojo_js_bindings_lib',
         'mojo_gles2',
         'mojo_gles2_bindings',
-        'mojo_js_bindings_lib',
         'mojo_native_viewport_bindings',
       ],
       'export_dependent_settings': [
         '../base/base.gyp:base',
         '../gin/gin.gyp:gin',
-        'mojo_common_lib',
+        'mojo_base.gyp:mojo_common_lib',
         'mojo_gles2',
         'mojo_gles2_bindings',
         'mojo_native_viewport_bindings',
@@ -44,10 +44,10 @@
       ],
       'includes': [ 'public/tools/bindings/mojom_bindings_generator.gypi' ],
       'export_dependent_settings': [
-        'mojo_cpp_bindings',
+        'mojo_base.gyp:mojo_cpp_bindings',
       ],
       'dependencies': [
-        'mojo_cpp_bindings',
+        'mojo_base.gyp:mojo_cpp_bindings',
       ],
     },
     {
@@ -55,12 +55,12 @@
       'type': 'executable',
       'dependencies': [
         '../gin/gin.gyp:gin_test',
+        'mojo_base.gyp:mojo_common_lib',
+        'mojo_base.gyp:mojo_common_test_support',
+        'mojo_base.gyp:mojo_public_test_interfaces',
+        'mojo_base.gyp:mojo_run_all_unittests',
         'mojo_apps_js_bindings',
-        'mojo_common_lib',
-        'mojo_common_test_support',
         'mojo_js_lib',
-        'mojo_run_all_unittests',
-        'mojo_public_test_interfaces',
       ],
       'sources': [
         'apps/js/test/js_to_cpp_unittest.cc',