[Android][gn] Add android resources templates

This adds support for android resources to gn.

Two new templates are introduced:

java_string_grd: This is like gyp's build/java_strings_grd.gypi. It runs
grit and generates Android strings.xml files and then zips them
together.
android_resources: This is the target for android resources. It is
mostly a wrapper around process_resources.py. This is *not part* of
android_library (like it is in gyp). Making these two things separate is
more like facebook's BUCK and google's internal build rules (and gyp's
java.gypi and java_apk.gypi have gotten way too big and complicated).

Changes to the actual build scripts are very minor except for the added
support for andoid_resources to write_build_config.py. Building
resources requires getting all the transitive resource dependencies, and
so this reuses the simple sorted transitive dependency thing from
write_ordered_libraries.py.

TBR=rch@chromium.org
BUG=359249

Review URL: https://codereview.chromium.org/361633002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283293 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 0 deletions

diff --git a/BUILD.gn b/BUILD.gn
index c92c498..a6c5b3a 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -141,6 +141,10 @@ group("root") {
   }
 
   if (is_android) {
+    deps += [
+      "//ui/android:ui_java"
+    ]
+
     deps -= [
       "//cc",
       "//chrome/browser",  # Blocked on content.