Allow targets to use BuildConfig by simply depending on base_java

build/config/android/internal_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.
 
 # Do not add any imports to non-//build directories here.
 # Some projects (e.g. V8) do not have non-build directories DEPS'ed in.
 import("//build_overrides/build.gni")
 import("//build/config/android/config.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 
@@ skipping 1809 matching lines @@
       }
 
       build_config = _build_config
       input_jar_path = invoker.jar_path
       output_jar_path = _jar_path
 
       deps = [ ":$_build_config_target_name" ] + _deps + _jar_deps
     }
 
     generate_interface_jar(_ijar_target_name) {
-      input_jar = _jar_path
+      if (!defined(invoker.proguard_preprocess) ||
+          !invoker.proguard_preprocess) {
+        # Always used the unfiltered .jar to create the interface jar so that
+        # other targets will resolve filtered classes when depending on
+        # BuildConfig, NativeLibraries, etc.
+        input_jar = invoker.jar_path
+        deps = _deps + _jar_deps
+      } else {
+        # However, still apply pre-proguarding, since ignoring that can break
+        # compiles.
+        input_jar = _jar_path
+        deps = [
+          ":$_process_jar_target_name",
+        ]
+      }
+
       output_jar = _ijar_path
-      deps = [
-        ":$_process_jar_target_name",
-      ]
     }
 
     if (_supports_android) {
       dex(_dex_target_name) {
         sources = [
           _jar_path,
         ]
         output = _dex_path
         deps = [ ":$_process_jar_target_name" ] + _deps + _jar_deps
       }
@@ skipping 276 matching lines @@
         input_jar_path = _process_prebuilt_jar_path
         output_jar_path = _final_jar_path
 
         deps = [
           ":$_process_prebuilt_target_name",
         ]
       }
     }
 
     generate_interface_jar(_ijar_target_name) {
-      input_jar = _final_jar_path
-      output_jar = _final_ijar_path
-      if (_emma_instrument) {
+      if (!defined(invoker.proguard_preprocess) ||
+          !invoker.proguard_preprocess) {
+        # Always used the unfiltered .jar to create the interface jar so that
+        # other targets will resolve filtered classes when depending on
+        # BuildConfig, NativeLibraries, etc.
+        input_jar = _javac_jar_path
         deps = [
-          ":$_emma_instr_target_name",
+          ":$_javac_target_name",
         ]
       } else {
+        # However, still apply pre-proguarding, since ignoring that can break
+        # compiles.
+        input_jar = _process_prebuilt_jar_path
         deps = [
           ":$_process_prebuilt_target_name",
         ]
       }
+      output_jar = _final_ijar_path
     }
 
     group(_final_target_name) {
       forward_variables_from(invoker, [ "visibility" ])
       public_deps = [
         ":$_ijar_target_name",
       ]
       if (_emma_instrument) {
         public_deps += [ ":$_emma_instr_target_name" ]
       } else {
@@ skipping 540 matching lines @@
         rebase_path(root_build_dir, root_build_dir),
         "--packed-libraries-dir",
         rebase_path(_packed_libraries_dir, root_build_dir),
         "--libraries=${invoker.libraries_filearg}",
         "--filelistjson",
         rebase_path(invoker.file_list_json, root_build_dir),
       ]
     }
   }
 }