[Mac] Remove -[NSWindow drawRect] swizzling.

chrome/browser/ui/cocoa/custom_frame_view_unittest.mm

Index: chrome/browser/ui/cocoa/custom_frame_view_unittest.mm
diff --git a/chrome/browser/ui/cocoa/custom_frame_view_unittest.mm b/chrome/browser/ui/cocoa/custom_frame_view_unittest.mm
index 4f061cdd019a7aab30444a74883eaead17f991f1..1c286d3957ccf28a5902e900fccd61d399d08c66 100644
--- a/chrome/browser/ui/cocoa/custom_frame_view_unittest.mm
+++ b/chrome/browser/ui/cocoa/custom_frame_view_unittest.mm
@@ -29,16 +29,20 @@ class CustomFrameViewTest : public PlatformTest {
 
 //  Test to make sure our class modifications were successful.
 TEST_F(CustomFrameViewTest, SuccessfulClassModifications) {
+  // In Yosemite, the fullscreen button replaces the zoom button. We no longer
+  // need to swizzle out this AppKit private method.
+  if (!base::mac::IsOSMavericksOrEarlier())
+    return;
+
   unsigned int count;
-  BOOL foundDrawRectOriginal = NO;
+  BOOL foundSwizzledMethod = NO;
 
   Method* methods = class_copyMethodList([view_ class], &count);
   for (unsigned int i = 0; i < count; ++i) {
     SEL selector = method_getName(methods[i]);
-    if (selector == @selector(drawRectOriginal:)) {
-      foundDrawRectOriginal = YES;
-    }
+    if (selector == @selector(_fullScreenButtonOriginOriginal))
+      foundSwizzledMethod = YES;
   }
-  EXPECT_TRUE(foundDrawRectOriginal);
+  EXPECT_TRUE(foundSwizzledMethod);
   free(methods);
 }