mac: Remove IsOSLion().

chrome/browser/ui/cocoa/spinner_view.mm

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/spinner_view.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #include "base/mac/mac_util.h"

[tapted, 2016/04/25 21:25:46]

probably unneeded

 #include "base/mac/sdk_forward_declarations.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "skia/ext/skia_utils_mac.h"
 #include "ui/base/theme_provider.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/native_theme/native_theme_mac.h"
 
 namespace {
 const CGFloat kDegrees90               = (M_PI / 2);
 const CGFloat kDegrees180              = (M_PI);
@@ skipping 151 matching lines @@
 // shrinks over the course of each cycle, which the spinner achieves by drawing
 // the arc using a (solid) dashed line pattern and animating the "lineDashPhase"
 // property.
 - (void)initializeAnimation {
   CGRect bounds = [self bounds];
   CGFloat scaleFactor = bounds.size.width / kDesignWidth;
 
   // Make sure |shapeLayer_|'s content scale factor matches the window's
   // backing depth (e.g. it's 2.0 on Retina Macs). Don't worry about adjusting
   // any other layers because |shapeLayer_| is the only one displaying content.
-  if (base::mac::IsOSLionOrLater()) {
-    CGFloat backingScaleFactor = [[self window] backingScaleFactor];
-    [shapeLayer_ setContentsScale:backingScaleFactor];
-  }
+  CGFloat backingScaleFactor = [[self window] backingScaleFactor];
+  [shapeLayer_ setContentsScale:backingScaleFactor];
 
   // Create the first half of the arc animation, where it grows from a short
   // block to its full length.
   base::scoped_nsobject<CAMediaTimingFunction> timingFunction(
       [[CAMediaTimingFunction alloc] initWithControlPoints:0.4 :0.0 :0.2 :1]);
   base::scoped_nsobject<CAKeyframeAnimation> firstHalfAnimation(
       [[CAKeyframeAnimation alloc] init]);
   [firstHalfAnimation setTimingFunction:timingFunction];
   [firstHalfAnimation setKeyPath:@"lineDashPhase"];
   // Begin the lineDashPhase animation just short of the full arc length,
@@ skipping 101 matching lines @@
       [rotationLayer_ addAnimation:rotationAnimation_.get()
                             forKey:kRotationAnimationName];
     }
   } else {
     [shapeLayer_ removeAllAnimations];
     [rotationLayer_ removeAllAnimations];
   }
 }
 
 @end