Do not initialize field trials on Android.

BUG=153909


Review URL: https://chromiumcodereview.appspot.com/11506022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@172962 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 755c69c..a458e4c 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -412,7 +412,7 @@
 
 chrome_variations::VariationsService* BrowserProcessImpl::variations_service() {
   DCHECK(CalledOnValidThread());
-#if defined(GOOGLE_CHROME_BUILD)
+#if defined(GOOGLE_CHROME_BUILD) && !defined(OS_ANDROID)
   if (!variations_service_.get())
     variations_service_.reset(new chrome_variations::VariationsService());
 #endif