mac: Remove IsOSLion().

chrome/browser/ui/cocoa/exclusive_access_bubble_view.mm

Index: chrome/browser/ui/cocoa/exclusive_access_bubble_view.mm
diff --git a/chrome/browser/ui/cocoa/exclusive_access_bubble_view.mm b/chrome/browser/ui/cocoa/exclusive_access_bubble_view.mm
index 39061e5622900fa2c340106370b2d905eb969c15..4378895a5be5a3def1defb92dc15803e5d8c78f8 100644
--- a/chrome/browser/ui/cocoa/exclusive_access_bubble_view.mm
+++ b/chrome/browser/ui/cocoa/exclusive_access_bubble_view.mm
@@ -14,10 +14,7 @@ const CGFloat kShadowTop = 20;
 const CGFloat kShadowBottom = 50;
 const CGFloat kShadowLeft = 50;
 const CGFloat kShadowRight = 50;
-const CGFloat kShadowBlurRadius = 150;
-// NOTE(koz): The blur radius parameter to setShadowBlurRadius: has a bigger
-// effect on lion, so use a smaller value for it.
-const CGFloat kShadowBlurRadiusLion = 30;
+const CGFloat kShadowBlurRadius = 30;
 const CGFloat kShadowAlpha = 0.5;
 const CGFloat kBubbleCornerRadius = 8.0;
 }
@@ -41,11 +38,7 @@ const CGFloat kBubbleCornerRadius = 8.0;
   [[NSColor whiteColor] set];
   gfx::ScopedNSGraphicsContextSaveGState scoped_g_state;
   base::scoped_nsobject<NSShadow> shadow([[NSShadow alloc] init]);
-  if (base::mac::IsOSLionOrLater()) {
-    [shadow setShadowBlurRadius:kShadowBlurRadiusLion];
-  } else {
-    [shadow setShadowBlurRadius:kShadowBlurRadius];
-  }
+  [shadow setShadowBlurRadius:kShadowBlurRadius];
   [shadow setShadowColor:[[NSColor blackColor]
                              colorWithAlphaComponent:kShadowAlpha]];
   [shadow set];