build: fix inputs for process_version action

Fixed: 360722985
Change-Id: I2405210c7edfedb8a71a8c512acd00c33b5bbaf6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5803378
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Philipp Wollermann <philwo@google.com>
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Fumitoshi Ukai <ukai@google.com>
Cr-Commit-Position: refs/heads/main@{#1345270}

build/util/process_version.gni

@@ -69,6 +69,8 @@ template("process_version") {
   action(action_name) {
     script = "//build/util/version.py"
 
+    sources = [ "//build/util/android_chrome_version.py" ]
+
     inputs = [ lastchange_file ]
     if (defined(invoker.inputs)) {
       inputs += invoker.inputs

build/util/version.py

@@ -57,7 +57,10 @@ def FetchValues(file_list, is_official_build=None):
     FetchValuesFromFile(values, file_name)
 
   script_dirname = os.path.dirname(os.path.realpath(__file__))
-  lastchange_filename = os.path.join(script_dirname, "LASTCHANGE")
+  if official_build == '1':
+    lastchange_filename = os.path.join(script_dirname, "LASTCHANGE")
+  else:
+    lastchange_filename = os.path.join(script_dirname, "LASTCHANGE.dummy")
   lastchange_values = {}
   FetchValuesFromFile(lastchange_values, lastchange_filename)