Make _incremental targets work with emma_coverage=true

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.
 
 import("//build/config/android/config.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/zip.gni")
 import("//third_party/ijar/ijar.gni")
 
 assert(is_android)
@@ skipping 292 matching lines @@
       "--android-sdk-tools",
       rebased_android_sdk_build_tools,
       "--dex-path",
       rebased_output,
     ]
 
     if (enable_incremental_dx) {
       args += [ "--incremental" ]
     }
 
-    if (defined(invoker.no_locals) && invoker.no_locals) {
+    # EMMA requires --no-locals.
+    if (emma_coverage) {
       args += [ "--no-locals=1" ]
     }
 
     if (_enable_multidex) {
       args += [
         "--multi-dex",
         "--main-dex-list-path",
         rebase_path(_main_dex_list_path, root_build_dir),
       ]
       deps += [ ":${_main_dex_list_target_name}" ]
@@ skipping 1412 matching lines @@
         }
       }
     }
 
     _final_deps += [ ":${_template_name}__dex" ]
     dex("${_template_name}__dex") {
       sources = [
         _jar_path,
       ]
       output = _dex_path
-      no_locals = _emma_instrument
       deps = [
         ":$_compile_java_target",
       ]
     }
   }
 
   group(target_name) {
     forward_variables_from(invoker, [ "visibility" ])
     public_deps = _final_deps
     data_deps = _final_datadeps
@@ skipping 402 matching lines @@
     ]
     args = [
       "--depfile",
       rebase_path(depfile, root_build_dir),
       "--script-output-path",
       rebase_path(generated_script, root_build_dir),
     ]
     args += test_runner_args
   }
 }