Increase tick interval for the android platform.

The phones and tablets currently in use are much slower that desktop
and laptop machines for which the current heuristics have been tuned.
Review URL: http://codereview.chromium.org/8757017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/log.h

@@ -295,7 +295,13 @@ class Logger {
   INLINE(static LogEventsAndTags ToNativeByScript(LogEventsAndTags, Script*));
 
   // Profiler's sampling interval (in milliseconds).
+#if defined(ANDROID)
+  // Phones and tablets have processors that are much slower than desktop
+  // and laptop computers for which current heuristics are tuned.
+  static const int kSamplingIntervalMs = 5;
+#else
   static const int kSamplingIntervalMs = 1;
+#endif
 
   // Callback from Log, stops profiling in case of insufficient resources.
   void LogFailure();