Move mojo\shell to services\shell

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index b017c947eb5bd33f379dc35cc8db7c966cf0b5fd..c98f59f1c8dd04bf7bcd535031c734e14c7d4357 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -186,8 +186,8 @@ group("both_gn_and_gyp") {
       "//mojo/edk/system:mojo_system_unittests",
       "//mojo/edk/test:mojo_public_bindings_unittests",
       "//mojo/edk/test:mojo_public_system_unittests",
-      "//mojo/shell/public/cpp",
       "//net:net_perftests",
+      "//services/shell/public/cpp",
       "//third_party/WebKit/Source/platform:blink_heap_unittests",
       "//third_party/WebKit/Source/platform:blink_platform_unittests",
       "//third_party/WebKit/Source/web:webkit_unit_tests",
@@ -493,7 +493,7 @@ group("both_gn_and_gyp") {
       "//gpu/command_buffer/client:gles2_implementation_no_check",
       "//gpu/khronos_glcts_support:khronos_glcts_test",  # TODO(GYP) crbug.com/471903 to make this complete.
       "//mojo/edk/test:mojo_public_system_perftests",
-      "//mojo/shell/public/cpp",
+      "//services/shell/public/cpp",
       "//testing/gmock:gmock_main",
       "//third_party/codesighs:nm2tsv",
     ]