Replace WIDEVINE_CDM_AVAILABLE with a gyp define 'enable_widevine_cdm'.

chrome/common/chrome_paths.cc

Index: chrome/common/chrome_paths.cc
diff --git a/chrome/common/chrome_paths.cc b/chrome/common/chrome_paths.cc
index 7c7d90e4f8af013255836aac6beb1d0d2424ef6c..8961d2c3bb504d586b0231cf59109dda2e0af57e 100644
--- a/chrome/common/chrome_paths.cc
+++ b/chrome/common/chrome_paths.cc
@@ -360,7 +360,7 @@ bool PathProvider(int key, base::FilePath* result) {
       cur = cur.Append(kGTalkPluginFileName);
       break;
 #endif
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
+#if defined(ENABLE_WIDEVINE_CDM) && defined(ENABLE_PEPPER_CDMS)
 #if defined(WIDEVINE_CDM_IS_COMPONENT)
     case chrome::DIR_COMPONENT_WIDEVINE_CDM:
       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
@@ -376,7 +376,7 @@ bool PathProvider(int key, base::FilePath* result) {
         return false;
       cur = cur.AppendASCII(kWidevineCdmAdapterFileName);
       break;
-#endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
+#endif  // defined(ENABLE_WIDEVINE_CDM) && defined(ENABLE_PEPPER_CDMS)
     case chrome::FILE_RESOURCES_PACK:
 #if defined(OS_MACOSX) && !defined(OS_IOS)
       if (base::mac::AmIBundled()) {