GN(android) Don't enable --gc-sections in debug mode.

content/test/BUILD.gn

 # 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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build_overrides/v8.gni")
 import("//media/media_options.gni")
@@ skipping 58 matching lines @@
       "test/content_test_suite.cc",
       "test/test_content_browser_client.cc",
       "test/test_content_client.cc",
     ]
   } else {
     sources =
         rebase_path(content_tests_gypi_values.test_support_content_sources,
                     ".",
                     "//content")
 
+    if (is_android) {
+      sources -= [
+        "mock_google_streaming_server.cc",
+        "mock_google_streaming_server.h",
+      ]
+    }
     public_deps += [ "//third_party/WebKit/public:blink" ]
     deps += [
       ":content_test_mojo_bindings",
       "//cc",
       "//cc:test_support",
       "//components/scheduler:scheduler",
       "//components/scheduler:test_support",
       "//content/browser/speech/proto",
       "//content/gpu",
       "//content/public/child",
       "//content/public/plugin",
       "//content/public/renderer",
       "//content/public/utility",
       "//content/shell:pak",
+      "//ipc:test_support",
       "//ipc/mojo",
       "//media",
       "//mojo/application/public/cpp:cpp_for_chromium",
       "//mojo/environment:chromium",
       "//storage/browser",
       "//storage/common",
       "//third_party/mojo/src/mojo/edk/test:test_support",
       "//ui/compositor:test_support",
       "//ui/surface",
       "//v8",
@@ skipping 795 matching lines @@
       deps += [
         "//gpu:test_support",
         "//media/base/android",
         "//media/base/android:media_java",
         "//testing/gmock",
         "//ui/android:ui_java",
       ]
     }
   }
 }