Revert "Remove 'mojo_' prefix from all mojo applications."

mojo/examples/surfaces_app/BUILD.gn

 # Copyright 2014 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.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 
 group("surfaces_app") {
   deps = [
     ":child_app",
     ":child_gl_app",
     ":parent_app",
   ]
 }
 
 shared_library("parent_app") {
-  output_name = "surfaces_app"
+  output_name = "mojo_surfaces_app"
 
   deps = [
     ":bindings",
     ":util",
     "//base",
     "//cc",
     "//cc/surfaces",
     "//skia",
     "//ui/gfx",
     "//ui/gfx/geometry",
@@ skipping 12 matching lines @@
 
   sources = [
     "embedder.cc",
     "embedder.h",
     "surfaces_app.cc",
   ]
 }
 
 
 shared_library("child_app") {
-  output_name = "surfaces_child_app"
+  output_name = "mojo_surfaces_child_app"
 
   deps = [
     ":bindings",
     ":util",
     "//base",
     "//cc",
     "//cc/surfaces",
     "//mojo/application",
     "//mojo/common",
     "//mojo/converters/geometry",
@@ skipping 10 matching lines @@
   ]
 
   sources = [
     "child_app.cc",
     "child_impl.cc",
     "child_impl.h",
   ]
 }
 
 shared_library("child_gl_app") {
-  output_name = "surfaces_child_gl_app"
+  output_name = "mojo_surfaces_child_gl_app"
 
   deps = [
     ":bindings",
     ":util",
     "//base",
     "//cc",
     "//cc/surfaces",
     "//gpu/command_buffer/common",
     "//mojo/application",
     "//mojo/common",
@@ skipping 38 matching lines @@
 
 mojom("bindings") {
   deps = [
     "//mojo/services/public/interfaces/geometry",
     "//mojo/services/public/interfaces/surfaces",
     "//mojo/services/public/interfaces/surfaces:surface_id",
   ]
 
   sources = [ "child.mojom" ]
 }