Bug 1307723 - Use USE_CLOCK_API on Android 64-bit. r=terrence

MozReview-Commit-ID: GTPaqSbkh9T

js/src/threading/posix/ConditionVariable.cpp

@@ -23,8 +23,9 @@ using mozilla::TimeStamp;
 
 static const long NanoSecPerSec = 1000000000;
 
-// Android & macOS 10.12 has the clock functions, but not pthread_condattr_setclock.
+// Android 32-bit & macOS 10.12 has the clock functions, but not pthread_condattr_setclock.
-#if defined(HAVE_CLOCK_MONOTONIC) && !defined(__ANDROID__) && !defined(__APPLE__)
+#if defined(HAVE_CLOCK_MONOTONIC) && \
+    !(defined(__ANDROID__) && !defined(__LP64__)) && !defined(__APPLE__)
 # define USE_CLOCK_API
 #endif