GN(android): Add scripts & runtime logic for installing _managed apks

build/config/android/rules.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.
 
 import("//base/android/linker/config.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//build/toolchain/toolchain.gni")
 import("//third_party/android_platform/config.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 1252 matching lines @@
   if (defined(invoker.android_manifest_dep)) {
     _android_manifest_deps = [ invoker.android_manifest_dep ]
   }
   _android_manifest = invoker.android_manifest
 
   _rebased_build_config = rebase_path(_build_config, root_build_dir)
   _create_abi_split =
       defined(invoker.create_abi_split) && invoker.create_abi_split
   _create_density_splits =
       defined(invoker.create_density_splits) && invoker.create_density_splits
+  _create_language_splits =
+      defined(invoker.language_splits) && invoker.language_splits != []
 
   # Help GN understand that _create_abi_split is not unused (bug in GN).
   assert(_create_abi_split || true)
 
   build_config_target = "${_template_name}__build_config"
   write_build_config(build_config_target) {
     forward_variables_from(invoker, [ "apk_under_test" ])
     type = "android_apk"
     dex_path = final_dex_path
     resources_zip = resources_zip_path
@@ skipping 199 matching lines @@
         rebased_gdbserver = rebase_path([ android_gdbserver ], root_build_dir)
         inputs += [ android_gdbserver ]
         args += [ "--libraries=$rebased_gdbserver" ]
       }
     }
   }
 
   _final_deps += [ ":${_template_name}__create" ]
   _incremental_final_deps += [ ":${_template_name}__create_incremental" ]
   create_apk("${_template_name}__create") {
     forward_variables_from(invoker, [ "language_splits" ])

[jbudorick, 2015/08/27 00:37:37]

We're already forwarding language_splits.

[agrieve, 2015/08/27 03:20:00]

Done.

     apk_path = _final_apk_path
     android_manifest = _android_manifest
     resources_zip = _all_resources_zip_path
     dex_path = final_dex_path
     load_library_from_apk = _load_library_from_apk
     create_density_splits = _create_density_splits
+    if (_create_language_splits) {
+      language_splits = invoker.language_splits
+    }
     if (defined(invoker.extensions_to_not_compress)) {
       extensions_to_not_compress = invoker.extensions_to_not_compress
     } else {
       # Allow icu data, v8 snapshots, and pak files to be loaded directly from
       # the .apk.
       # Note: These are actually suffix matches, not necessarily extensions.
       extensions_to_not_compress = ".dat,.bin,.pak"
     }
 
     version_code = _version_code
@@ skipping 60 matching lines @@
       keystore_password = _keystore_password
 
       native_libs_dir = _native_libs_dir
       deps = [
         ":${_template_name}__prepare_native",
         ":${_manifest_rule}",
       ]
     }
   }
 
+  _create_incremental_script_rule_name = "${_template_name}__incremental_script"
+  _incremental_final_deps += [ ":${_create_incremental_script_rule_name}" ]
+  action(_create_incremental_script_rule_name) {
+    script = "//build/android/gn/create_incremental_install_script.py"
+    depfile = "$target_gen_dir/$target_name.d"
+
+    _generated_script_path =
+        "${root_out_dir}/bin/install_incremental_${_template_name}"
+    outputs = [
+      depfile,
+      _generated_script_path,
+    ]
+
+    _rebased_apk_path_no_ext =
+        rebase_path(_final_apk_path_no_ext, root_build_dir)
+    _rebased_generated_script_path =
+        rebase_path(_generated_script_path, root_build_dir)
+    _rebased_depfile = rebase_path(depfile, root_build_dir)
+    args = [
+      "--apk-path=${_rebased_apk_path_no_ext}_incremental.apk",
+      "--script-output-path=$_rebased_generated_script_path",
+      "--depfile=$_rebased_depfile",
+    ]
+    if (defined(_native_libs_dir)) {
+      _rebased_native_libs_dir = rebase_path(_native_libs_dir, root_build_dir)
+      args += [ "--lib-dir=$_rebased_native_libs_dir/$android_app_abi" ]
+    }
+    if (_create_density_splits) {
+      args += [ "--split=${_rebased_apk_path_no_ext}-density-*.apk" ]
+    }
+    if (_create_language_splits) {
+      args += [ "--split=${_rebased_apk_path_no_ext}-language-*.apk" ]
+    }
+  }
+
   group(target_name) {
     forward_variables_from(invoker, [ "data_deps" ])
     deps = _final_deps
   }
   group("${target_name}_incremental") {
     deps = _incremental_final_deps
     if (defined(invoker.data_deps)) {
       data_deps = invoker.data_deps
     }
   }
@@ skipping 378 matching lines @@
 
 # TODO(GYP): implement this.
 template("uiautomator_test") {
   set_sources_assignment_filter([])
   forward_variables_from(invoker, [ "testonly" ])
   assert(target_name != "")
   assert(invoker.deps != [] || true)
   group(target_name) {
   }
 }