mac: Minor bug fix: 2.5 cannot be stored in an int.

chrome/browser/ui/cocoa/download/download_item_cell.mm

Index: chrome/browser/ui/cocoa/download/download_item_cell.mm
diff --git a/chrome/browser/ui/cocoa/download/download_item_cell.mm b/chrome/browser/ui/cocoa/download/download_item_cell.mm
index 14a666c318dc8971ba72998f3687bbc0dbe0645c..a16eba9e1f389a71e1dcd9b20539735a635ebd97 100644
--- a/chrome/browser/ui/cocoa/download/download_item_cell.mm
+++ b/chrome/browser/ui/cocoa/download/download_item_cell.mm
@@ -72,10 +72,10 @@ NSTimeInterval kShowStatusDuration = 0.3;
 NSTimeInterval kHideStatusDuration = 0.3;
 
 // Duration of the 'download complete' animation, in seconds.
-const int kCompleteAnimationDuration = 2.5;
+const CGFloat kCompleteAnimationDuration = 2.5;
 
 // Duration of the 'download interrupted' animation, in seconds.
-const int kInterruptedAnimationDuration = 2.5;
+const CGFloat kInterruptedAnimationDuration = 2.5;
 
 using content::DownloadItem;