build/java_cpp_template.gypi: new build rules.

net/net.gyp

Index: net/net.gyp
diff --git a/net/net.gyp b/net/net.gyp
index b5ccff34cfa185aa76a045b9b1c51376a708c8a1..6703dcf1ee64a33f04986ac0f09f3fdf1eb287dd 100644
--- a/net/net.gyp
+++ b/net/net.gyp
@@ -2249,39 +2249,17 @@
           'includes': [ '../build/java.gypi' ],
         },
         {
-          # This should be extracted to a gypi file and parameterized if
-          # we have more use cases of using the preprocessor to build java files.
           'target_name': 'net_errors_java',
           'type': 'none',
-          'direct_dependent_settings': {
-            'variables': {
-              'generated_src_dirs': ['<(SHARED_INTERMEDIATE_DIR)/net/template/'],
-              'additional_input_paths': ['<(SHARED_INTERMEDIATE_DIR)/net/template/NetError.java'],
-            },
-          },
-          'actions': [
-            {
-              'action_name': 'generate_net_errors_java',
-              'inputs': [
-                'android/java/net_errors_java.template',
-              ],
-              'outputs': [
-                '<(SHARED_INTERMEDIATE_DIR)/net/template/NetError.java',
-              ],
-              'action': [
-                'gcc',
-                '-x', 'c-header',
-                '-E', '-P',
-                '-I', '..',
-                '-o',
-                '<@(_outputs)',
-                '<@(_inputs)',
-              ],
-              'message': 'Preprocessing <(_inputs)',
-              'process_outputs_as_sources': 1,
-            },
+          'sources': [
+            'base/net_error_list.h',
+            'android/java/NetError.template',
           ],
-        },
+          'variables': {
+            'package_name': 'org.chromium.net',
+          },
+          'includes': [ '../build/java_cpp_template.gypi' ],
+        }
       ],
     }],
     # Special target to wrap a gtest_target_type==shared_library