Detect seek penalties on Linux/ChromeOS.

chrome/browser/metrics/drive_metrics_provider.cc

Index: chrome/browser/metrics/drive_metrics_provider.cc
diff --git a/chrome/browser/metrics/drive_metrics_provider.cc b/chrome/browser/metrics/drive_metrics_provider.cc
index 587358315a5db03f8335020f07095bc0ab0aa276..02f10d3940711bcc8a68e6de23de977a4f82495a 100644
--- a/chrome/browser/metrics/drive_metrics_provider.cc
+++ b/chrome/browser/metrics/drive_metrics_provider.cc
@@ -40,11 +40,11 @@ void DriveMetricsProvider::GetDriveMetrics(const base::Closure& done) {
 DriveMetricsProvider::SeekPenaltyResponse::SeekPenaltyResponse()
     : success(false) {}
 
-#if !(defined(OS_WIN) || defined(OS_ANDROID) || defined(OS_IOS))
+#if !(defined(OS_WIN) || defined(OS_LINUX) || defined(OS_IOS))
 // static
 bool DriveMetricsProvider::HasSeekPenalty(const base::FilePath& path,
                                           bool* has_seek_penalty) {
-  // TODO(dbeam): implement on more platforms.
+  // TODO(dbeam): implement on Mac.
   return false;
 }
 #endif