Make the WebView apk build in the Chrome tree

build/java_apk.gypi

 # Copyright (c) 2012 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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Android APKs in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my_package_apk',
@@ skipping 38 matching lines @@
 #  use_chromium_linker - Enable the content dynamic linker that allows sharing the
 #    RELRO section of the native libraries between the different processes.
 #  load_library_from_zip_file - When using the dynamic linker, load the library
 #    directly out of the zip file.
 #  use_relocation_packer - Enable relocation packing. Relies on the chromium
 #    linker, so use_chromium_linker must also be enabled.
 #  enable_chromium_linker_tests - Enable the content dynamic linker test support
 #    code. This allows a test APK to inject a Linker.TestRunner instance at
 #    runtime. Should only be used by the chromium_linker_test_apk target!!
 #  never_lint - Set to 1 to not run lint on this target.
+#  java_in_dir_suffix - To override the /src suffix on java_in_dir.
 {
   'variables': {
     'tested_apk_obfuscated_jar_path%': '/',
     'tested_apk_dex_path%': '/',
     'additional_input_paths': [],
     'input_jars_paths': [],
     'library_dexed_jars_paths': [],
     'additional_src_dirs': [],
     'generated_src_dirs': [],
     'app_manifest_version_name%': '<(android_app_version_name)',
@@ skipping 23 matching lines @@
     'native_libraries_java_file': '<(native_libraries_java_dir)/NativeLibraries.java',
     'native_libraries_java_stamp': '<(intermediate_dir)/native_libraries_java.stamp',
     'native_libraries_template_data_dir': '<(intermediate_dir)/native_libraries/',
     'native_libraries_template_data_file': '<(native_libraries_template_data_dir)/native_libraries_array.h',
     'native_libraries_template_version_file': '<(native_libraries_template_data_dir)/native_libraries_version.h',
     '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,
+    'java_in_dir_suffix%': '/src',
     'instr_stamp': '<(intermediate_dir)/instr.stamp',
     'jar_stamp': '<(intermediate_dir)/jar.stamp',
     'obfuscate_stamp': '<(intermediate_dir)/obfuscate.stamp',
     'pack_arm_relocations_stamp': '<(intermediate_dir)/pack_arm_relocations.stamp',
     'strip_stamp': '<(intermediate_dir)/strip.stamp',
     'stripped_libraries_dir': '<(intermediate_dir)/stripped_libraries',
     'strip_additional_stamp': '<(intermediate_dir)/strip_additional.stamp',
     'javac_includes': [],
     'jar_excluded_classes': [],
     'javac_jar_path': '<(intermediate_dir)/<(_target_name).javac.jar',
@@ skipping 505 matching lines @@
         # If there is a separate find for additional_src_dirs, it will find the
         # wrong .java files when additional_src_dirs is empty.
         # TODO(thakis): Gyp caches >! evaluation by command. Both java.gypi and
         # java_apk.gypi evaluate the same command, and at the moment two targets
         # set java_in_dir to "java". Add a dummy comment here to make sure
         # that the two targets (one uses java.gypi, the other java_apk.gypi)
         # get distinct source lists. Medium-term, make targets list all their
         # Java files instead of using find. (As is, this will be broken if two
         # targets use the same java_in_dir and both use java_apk.gypi or
         # both use java.gypi.)
-        'java_sources': ['>!@(find >(java_in_dir)/src >(additional_src_dirs) -name "*.java"  # apk)'],
+        'java_sources': ['>!@(find >(java_in_dir)>(java_in_dir_suffix) >(additional_src_dirs) -name "*.java"  # apk)'],
 
       },
       'inputs': [
         '<(DEPTH)/build/android/gyp/util/build_utils.py',
         '<(DEPTH)/build/android/gyp/javac.py',
         '>@(java_sources)',
         '>@(input_jars_paths)',
         '<(codegen_stamp)',
       ],
       'conditions': [
@@ skipping 31 matching lines @@
         '<(jar_path)',
       ],
       'inputs': [
         '<(javac_jar_path)',
       ],
       'includes': [ 'android/instr_action.gypi' ],
     },
     {
       'variables': {
         'src_dirs': [
-          '<(java_in_dir)/src',
+          '<(java_in_dir)<(java_in_dir_suffix)',
           '>@(additional_src_dirs)',
         ],
         'lint_jar_path': '<(jar_path)',
         'stamp_path': '<(lint_stamp)',
         'result_path': '<(lint_result)',
         'config_path': '<(lint_config)',
       },
       'outputs': [
         '<(lint_stamp)',
       ],
@@ skipping 208 matching lines @@
         '-DEMMA_INSTRUMENT=<(emma_instrument)',
         '-DEMMA_DEVICE_JAR=<(emma_device_jar)',
 
         '-Dbasedir=.',
         '-buildfile',
         '<(DEPTH)/build/android/ant/apk-package.xml',
       ]
     },
   ],
 }