Add linting for java libraries/apks to gn

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("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//tools/grit/grit_rule.gni")
 
 assert(is_android)
 
@@ skipping 381 matching lines @@
 # This target creates an Android library containing java code and Android
 # resources.
 #
 # Variables
 #   deps: Specifies the dependencies of this target. Java targets in this list
 #     will be added to the javac classpath. Android resources in dependencies
 #     will be used when building this library.
 #   java_files: List of .java files included in this library.
 #   srcjar_deps: List of srcjar dependencies. The .java files in the srcjars
 #     will be added to java_files and be included in this library.
-#
+#   chromium_code: If true, extra static analysis warning/errors will be enabled.
 #   jar_excluded_patterns: List of patterns of .class files to exclude from the
 #     final jar.
 #
 # Example
 #   android_library("foo_java") {
 #     java_files = [
 #       "android/org/chromium/foo/Foo.java",
 #       "android/org/chromium/foo/FooInterface.java",
 #       "android/org/chromium/foo/FooService.java",
 #     ]
@@ skipping 18 matching lines @@
     type = "android_library"
 
     deps = []
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
 
     # base_path
   }
 
+  _chromium_code = true
+  if (defined(invoker.chromium_code)) {
+    _chromium_code = invoker.chromium_code
+  }
+
   android_java_library(target_name) {
+    chromium_code = _chromium_code
     java_files = invoker.java_files
     build_config = build_config
 
     if (defined(invoker.jar_excluded_patterns)) {
       jar_excluded_patterns = invoker.jar_excluded_patterns
     }
 
     if (defined(invoker.srcjar_deps)) {
       srcjar_deps = invoker.srcjar_deps
     }
@@ skipping 93 matching lines @@
     zip_path = resources_zip_path
     srcjar_path = resource_srcjar_path
 
     generate_constant_ids = true
   }
 
   rebased_build_config = rebase_path(build_config, root_build_dir)
 
   final_deps += [":${target_name}__java"]
   android_java_library("${target_name}__java") {
+    android_manifest = invoker.android_manifest
     java_files = invoker.java_files
     dex_path = base_path + ".dex.jar"
   }
 
   final_deps += [":${target_name}__final_dex"]
   dex("${target_name}__final_dex") {
     sources = [jar_path]
     inputs = [build_config]
     output = final_dex_path
     dex_arg_key = "${rebased_build_config}:apk_dex:dependency_dex_files"
@@ skipping 45 matching lines @@
       "//testing/android/java/src/org/chromium/native_test/ChromeNativeTestActivity.java"
     ]
     android_manifest = "//testing/android/java/AndroidManifest.xml"
     unittests_outputs = get_target_outputs(invoker.unittests_dep)
     native_libs = [unittests_outputs[0]]
     if (defined(invoker.deps)) {
       deps = invoker.deps
     }
   }
 }