Add GN template for android_assets(). Use it in content_shell_apk.

base/BUILD.gn

 # Copyright (c) 2013 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/compiler/compiler.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
+import("//third_party/icu/config.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 config("base_flags") {
   if (is_clang) {
     cflags = [
       # Don't die on dtoa code that uses a char as an array index.
       # This is required solely for base/third_party/dmg_fp/dtoa_wrapper.cc.
@@ skipping 1007 matching lines @@
 
   if (!is_debug) {
     configs -= [ "//build/config/compiler:default_optimization" ]
     configs += [ "//build/config/compiler:optimize_max" ]
   }
 
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 }
 
+if (is_android) {
+  android_assets("icu_assets") {

[brettw, 2015/10/25 23:51:22]

Can this be in the ICU file instead of base?

[agrieve, 2015/10/26 15:43:48]

pkotwicz suggested this as well, but I think it's better in base because:
1. icu is a separate repository, adding frictions to changes (not sure why it
doesn't follow the pattern of putting its files in third_party/icu/src so that
BUILD.gn can be in third_party/icu without being a separate repo)
2. The disable_compression part is relevant to how the file is loaded, which is
done by the base/i18n module (perhaps it's worth adding a BUILD.gn for
base/i18n?)

+    if (icu_use_data_file) {
+      deps = [
+        "//third_party/icu:icudata",
+      ]
+      sources = [
+        "$root_build_dir/icudtl.dat",
+      ]
+    }
+    disable_compression = true
+  }
+}
+
 if (is_ios || is_win || (is_linux && !is_chromeos)) {
   # TODO(GYP): Figure out which of these work and are needed on other platforms.
   test("base_perftests") {
     sources = [
       "message_loop/message_pump_perftest.cc",
 
       # "test/run_all_unittests.cc",
       "threading/thread_perftest.cc",
     ]
     deps = [
@@ skipping 652 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }