Modify format of version codes file to fit Omaha expectations

Change the characters that get written to the chrome_versions.txt output
file so that it can be read by the parser Omaha uses.

Bug: 953059
Change-Id: I219dd2360cacf6d9bed2316478d86e733c4dcb06
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1570699Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Drew Stonebraker <stonebraker@chromium.org>
Cr-Commit-Position: refs/heads/master@{#651786}

build/util/version.gni

@@ -114,17 +114,6 @@ if (target_os == "mac") {
 
   chrome_version_name = chrome_version_full
 
-  lines_to_write__deprecated = [
-    "VersionName=$chrome_version_name",
-    "Chrome=$chrome_version_code",
-    "ChromeModern=$chrome_modern_version_code",
-    "Monochrome=$monochrome_version_code",
-    "TrichromeChrome=$trichrome_version_code",
-    "NoTouchChrome=$notouch_chrome_version_code",
-    "WebviewStable=$webview_stable_version_code",
-    "WebviewBeta=$webview_beta_version_code",
-    "WebviewDev=$webview_dev_version_code",
-  ]
   lines_to_write = [
     "VersionName: $chrome_version_name",
     "Chrome: $chrome_version_code",
@@ -138,12 +127,6 @@ if (target_os == "mac") {
   ]
 
   if (target_cpu == "arm64" || target_cpu == "x64") {
-    lines_to_write__deprecated += [
-      "Monochrome_64_32=$monochrome_64_32_version_code",
-      "Monochrome_64=$monochrome_64_version_code",
-      "TrichromeChrome_64_32=$trichrome_64_32_version_code",
-      "TrichromeChrome_64=$trichrome_64_version_code",
-    ]
     lines_to_write += [
       "Monochrome6432: $monochrome_64_32_version_code",
       "Monochrome64: $monochrome_64_version_code",
@@ -153,7 +136,4 @@ if (target_os == "mac") {
   }
 
   write_file("$root_out_dir/android_chrome_versions.txt", lines_to_write)
-
-  # TODO (stonebraker) For a 3-way patch; to be removed
-  write_file("$root_out_dir/chrome_versions.txt", lines_to_write__deprecated)
 }