Work-around missing librt for cross-compiling Chrome for Android in AOSP.

src/platform/time.cc

Index: src/platform/time.cc
diff --git a/src/platform/time.cc b/src/platform/time.cc
index 653eb14bf410409be9ae36820d34a6c581591b11..073ca1e1f4b985d792d9a2894155d7dd93b07831 100644
--- a/src/platform/time.cc
+++ b/src/platform/time.cc
@@ -509,6 +509,15 @@ TimeTicks TimeTicks::HighResNow() {
            info.numer / info.denom);
 #elif V8_OS_SOLARIS
   ticks = (gethrtime() / Time::kNanosecondsPerMicrosecond);
+#elif V8_LIBRT_NOT_AVAILABLE
+  // TODO(bmeurer): This is a temporary hack to support cross-compiling
+  // Chrome for Android in AOSP. Remove this once AOSP is fixed, also
+  // cleanup the tools/gyp/v8.gyp file.
+  struct timeval tv;
+  int result = gettimeofday(&tv, NULL);
+  ASSERT_EQ(0, result);
+  USE(result);
+  ticks = (tv.tv_sec * Time::kMicrosecondsPerSecond + tv.tv_usec);
 #elif V8_OS_POSIX
   struct timespec ts;
   int result = clock_gettime(CLOCK_MONOTONIC, &ts);