Eliminate unhelpful ERROR logging in accellerometer_reader.cc on linux

chromeos/accelerometer/accelerometer_reader.cc

Index: chromeos/accelerometer/accelerometer_reader.cc
diff --git a/chromeos/accelerometer/accelerometer_reader.cc b/chromeos/accelerometer/accelerometer_reader.cc
index 758a7b191e31940ad32a7f3d5067bf3a478d1929..4fad1defbec3a32f99be70a7abbb4e6d4a5afcb3 100644
--- a/chromeos/accelerometer/accelerometer_reader.cc
+++ b/chromeos/accelerometer/accelerometer_reader.cc
@@ -16,6 +16,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "base/sys_info.h"
 #include "base/task_runner.h"
 #include "base/task_runner_util.h"
 #include "base/thread_task_runner_handle.h"
@@ -228,17 +229,18 @@ void AccelerometerFileReader::Initialize(
 
   // Check for accelerometer symlink which will be created by the udev rules
   // file on detecting the device.
-  base::FilePath device;
-
   if (base::IsDirectoryEmpty(base::FilePath(kAccelerometerDevicePath))) {
-    LOG(ERROR) << "Accelerometer device directory is empty at "
-               << kAccelerometerDevicePath;
+    if (base::SysInfo::IsRunningOnChromeOS()) {
+      LOG(ERROR) << "Accelerometer device directory is empty at "
+                 << kAccelerometerDevicePath;
+    }
     return;
   }
-
   if (!base::PathExists(base::FilePath(kAccelerometerTriggerPath))) {
-    LOG(ERROR) << "Accelerometer trigger does not exist at"
-               << kAccelerometerTriggerPath;
+    if (base::SysInfo::IsRunningOnChromeOS()) {
+      LOG(ERROR) << "Accelerometer trigger does not exist at"
+                 << kAccelerometerTriggerPath;
+    }
     return;
   }