Replace WIDEVINE_CDM_AVAILABLE with a gyp define 'enable_widevine_cdm'.

chrome/browser/component_updater/widevine_cdm_component_installer.cc

Index: chrome/browser/component_updater/widevine_cdm_component_installer.cc
diff --git a/chrome/browser/component_updater/widevine_cdm_component_installer.cc b/chrome/browser/component_updater/widevine_cdm_component_installer.cc
index 66698f376a201e54b377d4e0e8172a44efb6af51..9c9f0b3bda9bb1d259b971ac899ef5791b6d8ffc 100644
--- a/chrome/browser/component_updater/widevine_cdm_component_installer.cc
+++ b/chrome/browser/component_updater/widevine_cdm_component_installer.cc
@@ -41,7 +41,7 @@ using content::PluginService;
 
 namespace component_updater {
 
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#if defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
 
 namespace {
 
@@ -361,10 +361,10 @@ void WidevineCdmComponentInstallerTraits::UpdateCdmAdapter(
                                      base::Passed(&manifest)));
 }
 
-#endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#endif  // defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
 
 void RegisterWidevineCdmComponent(ComponentUpdateService* cus) {
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#if defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
   base::FilePath adapter_source_path;
   PathService::Get(chrome::FILE_WIDEVINE_CDM_ADAPTER, &adapter_source_path);
   if (!base::PathExists(adapter_source_path))
@@ -377,7 +377,7 @@ void RegisterWidevineCdmComponent(ComponentUpdateService* cus) {
   installer->Register(cus);
 #else
   return;
-#endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
+#endif  // defined(ENABLE_WIDEVINE_CDM) && defined(WIDEVINE_CDM_IS_COMPONENT)
 }
 
 }  // namespace component_updater