Fix text wrapping problem in the download_item_controller on Yosemite.

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

Index: chrome/browser/ui/cocoa/download/download_item_controller.mm
diff --git a/chrome/browser/ui/cocoa/download/download_item_controller.mm b/chrome/browser/ui/cocoa/download/download_item_controller.mm
index a749d314579c501009632c98c6a7f44a10d4c642..d6f2a61c55dbbf24476ccdcae567cd6cc54a76f4 100644
--- a/chrome/browser/ui/cocoa/download/download_item_controller.mm
+++ b/chrome/browser/ui/cocoa/download/download_item_controller.mm
@@ -5,6 +5,7 @@
 #import "chrome/browser/ui/cocoa/download/download_item_controller.h"
 
 #include "base/mac/bundle_locations.h"
+#include "base/mac/mac_util.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
@@ -129,6 +130,16 @@ class DownloadShelfContextMenuMac : public DownloadShelfContextMenu {
 - (void)awakeFromNib {
   [progressView_ setController:self];
 
+  // The new system font on Yosemite brings slightly different font metrics.
+  // The |dangerousDownloadLabel_| is 22 points high with two lines of text
+  // in the nib, but on Yosemite it needs 24 points to hold that same text.
+  // See http://crbug.com/454782 .
+  if (base::mac::IsOSYosemite()) {

[Nico, 2015/02/11 03:45:53]

IsOSYosemiteOrLater() probably?

[shrike, 2015/02/11 16:45:35]

Done.

+    NSRect frame = [dangerousDownloadLabel_ frame];
+    frame.origin.y -= 1.0;
+    frame.size.height += 2.0;
+    [dangerousDownloadLabel_ setFrame:frame];
+  }
   GTMUILocalizerAndLayoutTweaker* localizerAndLayoutTweaker =
       [[[GTMUILocalizerAndLayoutTweaker alloc] init] autorelease];
   [localizerAndLayoutTweaker applyLocalizer:localizer_ tweakingUI:[self view]];