Creating new gn arg: enable_all_proguard_optimizations.

blimp/client/BUILD.gn

 # Copyright 2015 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/ui.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
@@ skipping 515 matching lines @@
       "//blimp/client/core:core_java",
       "//components/safe_json/android:safe_json_java",
       "//net/android:net_java",
     ]
     apk_name = "Blimp"
     android_manifest = blimp_apk_manifest
     android_manifest_dep = ":blimp_apk_manifest"
     shared_libraries = [ ":blimp_client_android" ]
   }
 
-  instrumentation_test_apk("blimp_test_apk") {
-    apk_name = "BlimpTest"
-    apk_under_test = ":blimp_apk"
-    android_manifest = blimp_test_apk_manifest
-    android_manifest_dep = ":blimp_test_apk_manifest"
-    deps = [
-      ":blimp_test_java",
-    ]
+  if (!enable_all_proguard_optimizations) {
+    instrumentation_test_apk("blimp_test_apk") {
+      apk_name = "BlimpTest"
+      apk_under_test = ":blimp_apk"
+      android_manifest = blimp_test_apk_manifest
+      android_manifest_dep = ":blimp_test_apk_manifest"
+      deps = [
+        ":blimp_test_java",
+      ]
+    }
   }
 }