Revert of [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 b4c34d38779241b8e75aed5800d58ae42566784c..96a5fff75812c0a480214509a2e6d37b89c3a39b 100644
--- a/chrome/browser/ui/cocoa/floating_bar_backing_view.mm
+++ b/chrome/browser/ui/cocoa/floating_bar_backing_view.mm
@@ -4,9 +4,27 @@
 
 #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 {}
@@ -27,4 +45,14 @@
     ui::WindowTitlebarReceivedDoubleClick([self window], self);
 }
 
+// ThemedWindowDrawing implementation.
+
+- (void)windowDidChangeTheme {
+  [self setNeedsDisplay:YES];
+}
+
+- (void)windowDidChangeActive {
+  [self setNeedsDisplay:YES];
+}
+
 @end  // @implementation FloatingBarBackingView