Closure Compiler: Add script to run compile and update Wiki docs.

This patch adds a script to run the Closure Compile for Chrome resources. It also updates the wiki to reflect this.

BUG=596944

Review URL: https://codereview.chromium.org/1829553002

Cr-Commit-Position: refs/heads/master@{#383378}

4 files changed, 22 insertions, 19 deletions

diff --git a/docs/closure_compilation.md b/docs/closure_compilation.md
index 540abf6..bc1cabd 100644
--- a/docs/closure_compilation.md
+++ b/docs/closure_compilation.md
@@ -15,17 +15,10 @@ On Mac or Windows, visit:
 
 ### Using ninja to compile the code
 
-We use GYP and ninja as our build system. To generate the ninja files from GYP:
+To compile the JavaScript, run this script:
 
 ```shell
-# notice the 2 in compiled_resources2.gyp
-GYP_GENERATORS=ninja tools/gyp/gyp --depth . third_party/closure_compiler/compiled_resources2.gyp
-```
-
-To compile the JavaScript:
-
-```shell
-ninja -C out/Default -j4
+third_party/closure_compiler/run_compiler
 ```
 
 The output should look something like this:
@@ -35,16 +28,10 @@ ninja: Entering directory `out/Default/'
 [30/106] ACTION Compiling chrome/browser/resources/md_history/constants.js
 ```
 
-To generate and run the **deprecated** v1 gyp format, remove the "2" from "compiled_resources2.gyp":
-
-```shell
-$ GYP_GENERATORS=ninja tools/gyp/gyp --depth . third_party/closure_compiler/compiled_resources.gyp
-```
-
-Compiling works the same way for both v1 and v2 systems:
+To compile only a specific target, add an argument after the script name:
 
 ```shell
-ninja -C out/Default -j4
+third_party/closure_compiler/run_compiler people_page
 ```
 
 ## Background
diff --git a/third_party/closure_compiler/compiled_resources.gyp b/third_party/closure_compiler/compiled_resources.gyp
index c57dae7..82075d9 100644
--- a/third_party/closure_compiler/compiled_resources.gyp
+++ b/third_party/closure_compiler/compiled_resources.gyp
@@ -17,7 +17,7 @@
 {
   'targets': [
     {
-      'target_name': 'compile_all_resources',
+      'target_name': 'compiled_resources',
       'type': 'none',
       'dependencies': [
         '../../chrome/browser/resources/bookmark_manager/js/compiled_resources.gyp:*',
diff --git a/third_party/closure_compiler/compiled_resources2.gyp b/third_party/closure_compiler/compiled_resources2.gyp
index df46c0c..da54f9f 100644
--- a/third_party/closure_compiler/compiled_resources2.gyp
+++ b/third_party/closure_compiler/compiled_resources2.gyp
@@ -11,7 +11,7 @@
 {
   'targets': [
     {
-      'target_name': 'compile_all_resources',
+      'target_name': 'compiled_resources2',
       'type': 'none',
       'dependencies': [
         '<(DEPTH)/chrome/browser/resources/chromeos/braille_ime/compiled_resources2.gyp:*',
diff --git a/third_party/closure_compiler/run_compiler b/third_party/closure_compiler/run_compiler
new file mode 100755
index 0000000..884c415
--- /dev/null
+++ b/third_party/closure_compiler/run_compiler
@@ -0,0 +1,16 @@
+#!/bin/sh
+# Copyright 2016 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.
+
+set -e
+
+cd $(dirname "$0")/../..
+
+export GYP_GENERATORS="ninja"
+
+tools/gyp/gyp --no-circular-check \
+third_party/closure_compiler/compiled_resources.gyp \
+third_party/closure_compiler/compiled_resources2.gyp
+
+ninja -C out/Default -j4 $@