Enable whitelist generation for all builds.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index f27421aa9b39cb1be934c99e14fa036b0e657f65..af56178aee814d0a616f6f5223704e7d05322629 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -17,6 +17,8 @@ import("//chrome/version.gni")
 import("//ui/base/ui_features.gni")
 import("//v8/gni/v8.gni")
 
+android_resource_whitelist = "$target_gen_dir/resource_whitelist.txt"
+
 if (is_android) {
   import("//build/config/android/rules.gni")
 } else if (is_mac) {
@@ -1483,6 +1485,11 @@ repack("packed_extra_resources") {
   } else {
     output = "$root_out_dir/resources.pak"
   }
+
+  if (is_android && enable_resource_whitelist_generation) {
+    repack_whitelist = android_resource_whitelist
+    deps += [ "//chrome:resource_whitelist" ]
+  }
 }
 
 # GYP version: chrome/chrome_resources.gyp:browser_tests_pak
@@ -1597,6 +1604,11 @@ template("chrome_repack_percent") {
     }
 
     output = repack_output_file
+
+    if (is_android && enable_resource_whitelist_generation) {
+      repack_whitelist = android_resource_whitelist
+      deps += [ "//chrome:resource_whitelist" ]
+    }
   }
 
   copy(copy_name) {
@@ -1764,6 +1776,31 @@ if (is_android) {
   }
 }
 
+action("resource_whitelist") {

[agrieve, 2016/07/29 01:55:21]

You should guard this target behind: if (is_android &&
enable_resource_whitelist_generation)

This is probably what's causing a gn gen failure.

[estevenson, 2016/07/29 15:33:57]

Done.

+  deps = [
+    "//chrome/android:chrome",
+  ]
+  script = "//tools/resources/generate_resource_whitelist.py"
+
+  _infile = "$root_out_dir/libchrome.cr.so.whitelist"
+  inputs = [
+    _infile,
+  ]
+
+  _outfile = android_resource_whitelist
+  outputs = [
+    _outfile,
+  ]
+
+  args = [
+    "-i",
+    rebase_path(_infile, root_build_dir),
+    "-o",
+    rebase_path(_outfile, root_build_dir),
+    "--out-dir=.",
+  ]
+}
+
 if (is_linux) {
   action("manpage") {
     if (is_chrome_branded) {