Replace WIDEVINE_CDM_AVAILABLE with a gyp define 'enable_widevine_cdm'.

content/renderer/media/render_media_client_unittest.cc

Index: content/renderer/media/render_media_client_unittest.cc
diff --git a/content/renderer/media/render_media_client_unittest.cc b/content/renderer/media/render_media_client_unittest.cc
index e796e46442312caae44d0098879db8035c26b0c1..f774791488624bebbad216d2513d651507dbafc7 100644
--- a/content/renderer/media/render_media_client_unittest.cc
+++ b/content/renderer/media/render_media_client_unittest.cc
@@ -25,7 +25,7 @@ class TestContentRendererClient : public ContentRendererClient {
   void AddKeySystems(
       std::vector<media::KeySystemInfo>* key_systems_info) override {
     media::KeySystemInfo key_system_info("test.keysystem");
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#if defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
     if (is_extra_key_system_enabled_)
       key_systems_info->push_back(media::KeySystemInfo(kWidevineKeySystem));
 #endif
@@ -38,7 +38,7 @@ class TestContentRendererClient : public ContentRendererClient {
   bool is_extra_key_system_enabled_;
 };
 
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#if defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
 bool ContainsWidevine(
     const std::vector<media::KeySystemInfo>& key_systems_info) {
   for (const auto& key_system_info: key_systems_info) {
@@ -86,7 +86,7 @@ TEST_F(RenderMediaClientTest, KeySystemNameForUMA) {
       clearkey_uma_name = info.key_system_name_for_uma;
   }
 
-#if defined(WIDEVINE_CDM_AVAILABLE)
+#if defined(ENABLE_WIDEVINE_CDM)
   EXPECT_EQ("Widevine", widevine_uma_name);
 #else
   EXPECT_TRUE(widevine_uma_name.empty());
@@ -112,7 +112,7 @@ TEST_F(RenderMediaClientTest, IsKeySystemsUpdateNeeded) {
   // No update needed immediately after AddSupportedKeySystems() call.
   EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
 
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#if defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
   // Widevine not supported because extra key system isn't enabled.
   EXPECT_FALSE(ContainsWidevine(key_systems_info));