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

chrome/browser/ui/cocoa/floating_bar_backing_view.mm

 // Copyright (c) 2012 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.
 
 #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 {}
 - (void)otherMouseDown:(NSEvent*)event {}
 - (void)rightMouseUp:(NSEvent*)event {}
 - (void)otherMouseUp:(NSEvent*)event {}
 - (void)mouseMoved:(NSEvent*)event {}
 - (void)mouseDragged:(NSEvent*)event {}
 - (void)rightMouseDragged:(NSEvent*)event {}
 - (void)otherMouseDragged:(NSEvent*)event {}
 
 // Eat this too, except that ...
 - (void)mouseUp:(NSEvent*)event {
   // a double-click in the blank area should try to minimize, to be consistent
   // with double-clicks on the contiguous tab strip area. (It'll fail and beep.)
   if ([event clickCount] == 2)
     ui::WindowTitlebarReceivedDoubleClick([self window], self);
 }
 
-// ThemedWindowDrawing implementation.
-
-- (void)windowDidChangeTheme {
-  [self setNeedsDisplay:YES];
-}
-
-- (void)windowDidChangeActive {
-  [self setNeedsDisplay:YES];
-}
-
 @end  // @implementation FloatingBarBackingView