[Android] Add lint as a gyp action.

build/java.gypi

Index: build/java.gypi
diff --git a/build/java.gypi b/build/java.gypi
index 2e03bab7cceb7647af86c8d4285885c01dbc57a0..b3daebbee601c8a2f26e6d1763774c7423e13d18 100644
--- a/build/java.gypi
+++ b/build/java.gypi
@@ -44,6 +44,7 @@
 #  res_extra_dirs - A list of extra directories containing Android resources.
 #    These directories may be generated at build time.
 #  res_extra_files - A list of the files in res_extra_dirs.
+#  never_lint - Set to 1 to not run lint on this target.
 
 {
   'dependencies': [
@@ -73,6 +74,10 @@
     'intermediate_dir': '<(SHARED_INTERMEDIATE_DIR)/<(_target_name)',
     'classes_dir': '<(intermediate_dir)/classes',
     'compile_stamp': '<(intermediate_dir)/compile.stamp',
+    'lint_stamp': '<(intermediate_dir)/lint.stamp',
+    'lint_result': '<(intermediate_dir)/lint_result.xml',
+    'lint_config': '<(intermediate_dir)/lint_config.xml',
+    'never_lint%': 0,
     'proguard_config%': '',
     'proguard_preprocess%': '0',
     'variables': {
@@ -308,6 +313,24 @@
       ]
     },
     {
+      'variables': {
+        'src_dirs': [
+          '<(java_in_dir)/src',
+          '>@(additional_src_dirs)',
+        ],
+        'stamp_path': '<(lint_stamp)',
+        'result_path': '<(lint_result)',
+        'config_path': '<(lint_config)',
+      },
+      'inputs': [
+        '<(compile_stamp)',
+      ],
+      'outputs': [
+        '<(lint_stamp)',
+      ],
+      'includes': [ 'android/lint_action.gypi' ],
+    },
+    {
       'action_name': 'jar_<(_target_name)',
       'message': 'Creating <(_target_name) jar',
       'inputs': [