Use chromium version for data reduction proxy version

components/data_reduction_proxy/common/version.gni

 # 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.
 
 # Runs the version processing script over the given template file to produce
 # an output file. This is used for generating various forms of files that
 # incorporate the product name and version.
 #
-# This template automatically includes VERSION, LASTCHANGE, and BRANDING,
+# This template automatically includes VERSION,
 #
 # Parameters:
 #   source:
 #     File name of source template file to read.
 #
 #   output:
 #     File name of file to write.
 #
 #   visibility (optional)
 #
 # Example:
 #   process_version("myversion") {
 #     source = "myfile.h.in"
 #     output = "$target_gen_dir/myfile.h"
 #   }
 template("process_version") {
   assert(defined(invoker.source), "Source must be defined for $target_name")
   assert(defined(invoker.output), "Output must be defined for $target_name")
 
   action(target_name) {
     if (defined(invoker.visibility)) {
       visibility = invoker.visibility
     }
     script = "//build/util/version.py"
 
-    lastchange_path = "//build/util/LASTCHANGE"
     version_path = "//chrome/VERSION"
-    if (is_chrome_branded) {
-      branding_path = "//chrome/app/theme/google_chrome/BRANDING"
-    } else {
-      branding_path = "//chrome/app/theme/chromium/BRANDING"
-    }
 
     inputs = [
       version_path,
       invoker.source,
-      lastchange_path,
-      branding_path,
     ]
 
     outputs = [ invoker.output ]
 
     args = [
       "-f", rebase_path(version_path, root_build_dir),
-      "-f", rebase_path(branding_path, root_build_dir),
-      "-f", rebase_path(lastchange_path, root_build_dir),
       rebase_path(invoker.source, root_build_dir),
       rebase_path(invoker.output, root_build_dir),
     ]
   }
 }