GN: Refactor modules_unittests to eliminate package boundary violations.

webrtc/modules/audio_device/BUILD.gn

Index: webrtc/modules/audio_device/BUILD.gn
diff --git a/webrtc/modules/audio_device/BUILD.gn b/webrtc/modules/audio_device/BUILD.gn
index ab9406e13fb0b0078b74fb837ebfe04cb5a0b2f4..e2b510cd7203f1df956f2d9a81d06fef30361014 100644
--- a/webrtc/modules/audio_device/BUILD.gn
+++ b/webrtc/modules/audio_device/BUILD.gn
@@ -265,40 +265,84 @@ config("mock_audio_device_config") {
 }
 
 if (rtc_include_tests) {
-  rtc_source_set("mock_audio_device") {
+  rtc_source_set("audio_device_unittests") {
     testonly = true
     sources = [
-      "include/mock_audio_device.h",
-      "include/mock_audio_transport.h",
+      "fine_audio_buffer_unittest.cc",
     ]
     deps = [
       ":audio_device",
+      ":mock_audio_device",
+      "../../base:rtc_base_approved",
+      "../../system_wrappers:system_wrappers",
       "../../test:test_support",
+      "../utility:utility",
+      "//testing/gmock",
     ]
-    all_dependent_configs = [ ":mock_audio_device_config" ]
+    if (is_android) {
+      # Need to disable error due to the line in
+      # base/android/jni_android.h triggering it:
+      # const BASE_EXPORT jobject GetApplicationContext()
+      # error: type qualifiers ignored on function return type
+      cflags = [ "-Wno-ignored-qualifiers" ]
+      sources += [
+        "android/audio_device_unittest.cc",
+        "android/audio_manager_unittest.cc",
+        "android/ensure_initialized.cc",
+        "android/ensure_initialized.h",
+      ]
+      deps += [
+        "../../../base",
+        "//webrtc/sdk/android:libjingle_peerconnection_java",
+      ]
+    }
+    if (is_ios) {
+      sources += [ "ios/objc/RTCAudioSessionTest.mm" ]
+      configs += [ "//build/config/compiler:enable_arc" ]
+      if (target_cpu != "x64") {
+        sources += [ "ios/audio_device_unittest_ios.cc" ]
+      }
+    }
+    if (!build_with_chromium && is_clang) {
+      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
+      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
+    }
   }
-}
 
-# These tests do not work on ios, see
-# https://bugs.chromium.org/p/webrtc/issues/detail?id=4755
-if (rtc_include_tests && !is_ios) {
-  rtc_executable("audio_device_tests") {
+  rtc_source_set("mock_audio_device") {
     testonly = true
     sources = [
-      "test/audio_device_test_api.cc",
-      "test/audio_device_test_defines.h",
+      "include/mock_audio_device.h",
+      "include/mock_audio_transport.h",
     ]
     deps = [
       ":audio_device",
-      "../..:webrtc_common",
-      "../../system_wrappers",
-      "../../test:test_main",
       "../../test:test_support",
-      "../rtp_rtcp",
-      "../utility",
-      "//testing/gtest",
     ]
-    public_configs = [ ":audio_device_config" ]
+    all_dependent_configs = [ ":mock_audio_device_config" ]
+  }
+
+  if (!is_ios) {
+    # These tests do not work on ios, see
+    # https://bugs.chromium.org/p/webrtc/issues/detail?id=4755
+    rtc_executable("audio_device_tests") {
+      testonly = true
+      sources = [
+        "test/audio_device_test_api.cc",
+        "test/audio_device_test_defines.h",
+      ]
+      deps = [
+        ":audio_device",
+        "../..:webrtc_common",
+        "../../system_wrappers",
+        "../../test:test_main",
+        "../../test:test_support",
+        "../rtp_rtcp",
+        "../utility",
+        "//testing/gtest",
+      ]
+      public_configs = [ ":audio_device_config" ]
+    }
   }
 }