[Mac] Fix rough-looking profile picker text, especially with a dark theme.

chrome/browser/ui/cocoa/floating_bar_backing_view.mm

Index: chrome/browser/ui/cocoa/floating_bar_backing_view.mm
diff --git a/chrome/browser/ui/cocoa/floating_bar_backing_view.mm b/chrome/browser/ui/cocoa/floating_bar_backing_view.mm
index 96a5fff75812c0a480214509a2e6d37b89c3a39b..b4c34d38779241b8e75aed5800d58ae42566784c 100644
--- a/chrome/browser/ui/cocoa/floating_bar_backing_view.mm
+++ b/chrome/browser/ui/cocoa/floating_bar_backing_view.mm
@@ -4,28 +4,10 @@
 
 #include "chrome/browser/ui/cocoa/floating_bar_backing_view.h"
 
-#import "chrome/browser/ui/cocoa/framed_browser_window.h"
 #import "ui/base/cocoa/appkit_utils.h"
 
 @implementation FloatingBarBackingView
 
-- (void)drawRect:(NSRect)rect {
-  NSWindow* window = [self window];
-  BOOL isMainWindow = [window isMainWindow];
-
-  if (isMainWindow)
-    [[NSColor windowFrameColor] set];
-  else
-    [[NSColor windowBackgroundColor] set];
-  NSRectFill(rect);
-
-  [FramedBrowserWindow drawWindowThemeInDirtyRect:rect
-                                          forView:self
-                                           bounds:[self bounds]
-                             forceBlackBackground:YES];
-
-}
-
 // Eat all mouse events (and do *not* pass them on to the next responder!).
 - (void)mouseDown:(NSEvent*)event {}
 - (void)rightMouseDown:(NSEvent*)event {}
@@ -45,14 +27,4 @@
     ui::WindowTitlebarReceivedDoubleClick([self window], self);
 }
 
-// ThemedWindowDrawing implementation.
-
-- (void)windowDidChangeTheme {
-  [self setNeedsDisplay:YES];
-}
-
-- (void)windowDidChangeActive {
-  [self setNeedsDisplay:YES];
-}
-
 @end  // @implementation FloatingBarBackingView