Hook up chrome.exe manifest in the Windows GN build.

chrome/app/version_assembly/BUILD.gn

Index: chrome/app/version_assembly/BUILD.gn
diff --git a/chrome/app/version_assembly/BUILD.gn b/chrome/app/version_assembly/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..5e38ca978bb395b66fe750e5f60f5e2983c9503e
--- /dev/null
+++ b/chrome/app/version_assembly/BUILD.gn
@@ -0,0 +1,41 @@
+# Copyright 2015 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("//build/config/win/manifest.gni")
+import("//build/util/version.gni")
+import("//chrome/version.gni")
+
+version_assembly_output_file = "$target_gen_dir/version_assembly.manifest"
+
+# Generates a manifest file with the current build's version information.
+process_version("chrome_exe_version_manifest") {
+  visibility = [ ":*" ]
+  template_file = "chrome_exe_manifest.template"
+  output = version_assembly_output_file
+}
+
+# Generates the manifest for chrome.exe. This is the normal manifest stuff plus
+# the version information.
+windows_manifest("chrome_exe_manifest") {
+  sources = [
+    as_invoker_manifest,
+    common_controls_manifest,
+    default_compatibility_manifest,
+    version_assembly_output_file,
+  ]
+
+  type = "exe"
+
+  deps = [
+    ":chrome_exe_version_manifest",
+  ]
+}
+
+# Generates the manifest for the version assembly, which is the versioned
+# directory where Chrome finds chrome.dll.
+process_version("version_assembly_manifest") {
+  template_file = "version_assembly_manifest.template"
+  output = "$root_build_dir/$chrome_version_full.manifest"
+  process_only = true
+}