Don't link with audio codecs that we don't use

webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest.cc

Index: webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest.cc
diff --git a/webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest.cc b/webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest.cc
index 418ddd111f104eb67f71c6216fdeaf4764f9a20e..c12baf3f4047acbede681e84f87b40869be0f1ee 100644
--- a/webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest.cc
+++ b/webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest.cc
@@ -504,7 +504,13 @@ class AcmIsacMtTest : public AudioCodingModuleMtTest {
   test::AudioLoop audio_loop_;
 };
 
-TEST_F(AcmIsacMtTest, DoTest) {
+#if defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX)
+#define IF_ISAC(x) x
+#else
+#define IF_ISAC(x) DISABLED_##x
+#endif
+
+TEST_F(AcmIsacMtTest, IF_ISAC(DoTest)) {
   EXPECT_EQ(kEventSignaled, RunTest());
 }
 
@@ -559,13 +565,20 @@ class AcmReceiverBitExactness : public ::testing::Test {
   }
 };
 
+#if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISAC)) && \
+    defined(WEBRTC_CODEC_ILBC) && defined(WEBRTC_CODEC_G722)
+#define IF_ALL_CODECS(x) x
+#else
+#define IF_ALL_CODECS(x) DISABLED_##x
+#endif
+
 // Fails Android ARM64. https://code.google.com/p/webrtc/issues/detail?id=4199
 #if defined(WEBRTC_ANDROID) && defined(WEBRTC_ARCH_ARM64)
 #define MAYBE_8kHzOutput DISABLED_8kHzOutput
 #else
 #define MAYBE_8kHzOutput 8kHzOutput
 #endif
-TEST_F(AcmReceiverBitExactness, MAYBE_8kHzOutput) {
+TEST_F(AcmReceiverBitExactness, IF_ALL_CODECS(MAYBE_8kHzOutput)) {
   Run(8000,
       PlatformChecksum("dcee98c623b147ebe1b40dd30efa896e",
                        "adc92e173f908f93b96ba5844209815a",
@@ -578,7 +591,7 @@ TEST_F(AcmReceiverBitExactness, MAYBE_8kHzOutput) {
 #else
 #define MAYBE_16kHzOutput 16kHzOutput
 #endif
-TEST_F(AcmReceiverBitExactness, MAYBE_16kHzOutput) {
+TEST_F(AcmReceiverBitExactness, IF_ALL_CODECS(MAYBE_16kHzOutput)) {
   Run(16000,
       PlatformChecksum("f790e7a8cce4e2c8b7bb5e0e4c5dac0d",
                        "8cffa6abcb3e18e33b9d857666dff66a",
@@ -591,7 +604,7 @@ TEST_F(AcmReceiverBitExactness, MAYBE_16kHzOutput) {
 #else
 #define MAYBE_32kHzOutput 32kHzOutput
 #endif
-TEST_F(AcmReceiverBitExactness, MAYBE_32kHzOutput) {
+TEST_F(AcmReceiverBitExactness, IF_ALL_CODECS(MAYBE_32kHzOutput)) {
   Run(32000,
       PlatformChecksum("306e0d990ee6e92de3fbecc0123ece37",
                        "3e126fe894720c3f85edadcc91964ba5",
@@ -604,7 +617,7 @@ TEST_F(AcmReceiverBitExactness, MAYBE_32kHzOutput) {
 #else
 #define MAYBE_48kHzOutput 48kHzOutput
 #endif
-TEST_F(AcmReceiverBitExactness, MAYBE_48kHzOutput) {
+TEST_F(AcmReceiverBitExactness, IF_ALL_CODECS(MAYBE_48kHzOutput)) {
   Run(48000,
       PlatformChecksum("aa7c232f63a67b2a72703593bdd172e0",
                        "0155665e93067c4e89256b944dd11999",
@@ -770,7 +783,7 @@ class AcmSenderBitExactness : public ::testing::Test,
 #else
 #define MAYBE_IsacWb30ms IsacWb30ms
 #endif
-TEST_F(AcmSenderBitExactness, MAYBE_IsacWb30ms) {
+TEST_F(AcmSenderBitExactness, IF_ISAC(MAYBE_IsacWb30ms)) {
   ASSERT_NO_FATAL_FAILURE(SetUpTest(acm2::ACMCodecDB::kISAC, 1, 103, 480, 480));
   Run(AcmReceiverBitExactness::PlatformChecksum(
           "c7e5bdadfa2871df95639fcc297cf23d",
@@ -790,7 +803,7 @@ TEST_F(AcmSenderBitExactness, MAYBE_IsacWb30ms) {
 #else
 #define MAYBE_IsacWb60ms IsacWb60ms
 #endif
-TEST_F(AcmSenderBitExactness, MAYBE_IsacWb60ms) {
+TEST_F(AcmSenderBitExactness, IF_ISAC(MAYBE_IsacWb60ms)) {
   ASSERT_NO_FATAL_FAILURE(SetUpTest(acm2::ACMCodecDB::kISAC, 1, 103, 960, 960));
   Run(AcmReceiverBitExactness::PlatformChecksum(
           "14d63c5f08127d280e722e3191b73bdd",
@@ -804,7 +817,13 @@ TEST_F(AcmSenderBitExactness, MAYBE_IsacWb60ms) {
       test::AcmReceiveTest::kMonoOutput);
 }
 
-TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(IsacSwb30ms)) {
+#ifdef WEBRTC_CODEC_ISAC
+#define IF_ISAC_FLOAT(x) x
+#else
+#define IF_ISAC_FLOAT(x) DISABLED_##x
+#endif
+
+TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(IF_ISAC_FLOAT(IsacSwb30ms))) {
   ASSERT_NO_FATAL_FAILURE(
       SetUpTest(acm2::ACMCodecDB::kISACSWB, 1, 104, 960, 960));
   Run(AcmReceiverBitExactness::PlatformChecksum(
@@ -905,7 +924,13 @@ TEST_F(AcmSenderBitExactness, Pcma_stereo_20ms) {
       test::AcmReceiveTest::kStereoOutput);
 }
 
-TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(Ilbc_30ms)) {
+#ifdef WEBRTC_CODEC_ILBC
+#define IF_ILBC(x) x
+#else
+#define IF_ILBC(x) DISABLED_##x
+#endif
+
+TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(IF_ILBC(Ilbc_30ms))) {
   ASSERT_NO_FATAL_FAILURE(SetUpTest(acm2::ACMCodecDB::kILBC, 1, 102, 240, 240));
   Run(AcmReceiverBitExactness::PlatformChecksum(
           "7b6ec10910debd9af08011d3ed5249f7",
@@ -919,7 +944,13 @@ TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(Ilbc_30ms)) {
       test::AcmReceiveTest::kMonoOutput);
 }
 
-TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(G722_20ms)) {
+#ifdef WEBRTC_CODEC_G722
+#define IF_G722(x) x
+#else
+#define IF_G722(x) DISABLED_##x
+#endif
+
+TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(IF_G722(G722_20ms))) {
   ASSERT_NO_FATAL_FAILURE(SetUpTest(acm2::ACMCodecDB::kG722, 1, 9, 320, 160));
   Run(AcmReceiverBitExactness::PlatformChecksum(
           "7d759436f2533582950d148b5161a36c",
@@ -933,7 +964,7 @@ TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(G722_20ms)) {
       test::AcmReceiveTest::kMonoOutput);
 }
 
-TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(G722_stereo_20ms)) {
+TEST_F(AcmSenderBitExactness, DISABLED_ON_ANDROID(IF_G722(G722_stereo_20ms))) {
   ASSERT_NO_FATAL_FAILURE(
       SetUpTest(acm2::ACMCodecDB::kG722_2ch, 2, 119, 320, 160));
   Run(AcmReceiverBitExactness::PlatformChecksum(