Revert of BackgroundGradientView: -drawBackground: → -drawRect:

chrome/browser/ui/cocoa/tabs/tab_strip_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.
 
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_view.h"
 
 #include <cmath>  // floor
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
@@ skipping 48 matching lines @@
   NSWindow* window = [self window];
   const ui::ThemeProvider* themeProvider = [window themeProvider];
   if (!themeProvider)
     return;
 
   if (!ui::MaterialDesignController::IsModeMaterial()) {
     // First draw the toolbar bitmap, so that theme colors can shine through.
     NSRect backgroundRect = [self bounds];
     backgroundRect.size.height = 2 * [self cr_lineWidth];
     if (NSIntersectsRect(backgroundRect, dirtyRect))
-      [super drawRect:backgroundRect];
+      [self drawBackground:backgroundRect];
 
     // Draw the border bitmap, which is partially transparent.
     NSImage* image = themeProvider->GetNSImageNamed(IDR_TOOLBAR_SHADE_TOP);
     NSRect borderRect = backgroundRect;
     borderRect.size.height = [image size].height;
     if (NSIntersectsRect(borderRect, dirtyRect)) {
       BOOL focused = [window isMainWindow];
       NSDrawThreePartImage(borderRect, nil, image, nil, /*vertical=*/ NO,
                            NSCompositeSourceOver,
                            focused ?  1.0 : tabs::kImageNoFocusAlpha,
                            /*flipped=*/ NO);
     }
 
     return;
   }
 
   NSColor* strokeColor;
   if (themeProvider->HasCustomImage(IDR_THEME_TOOLBAR) ||
       themeProvider->HasCustomColor(ThemeProperties::COLOR_TOOLBAR)) {
     // First draw the toolbar bitmap, so that theme colors can shine through.
     NSRect backgroundRect = [self bounds];
     backgroundRect.size.height = [self cr_lineWidth];
     if (NSIntersectsRect(backgroundRect, dirtyRect)) {
-      [super drawRect:backgroundRect];
+      [self drawBackground:backgroundRect];
     }
 
     // Pre-MD the IDR_TOOLBAR_SHADE_TOP image would lay down a light highlight
     // which helped dark toolbars stand out from dark frames. Lay down a thin
     // highlight in MD also.
     if ([window isMainWindow]) {
       strokeColor = themeProvider->GetNSColor(
           ThemeProperties::COLOR_TOOLBAR_STROKE_THEME);
     } else {
       strokeColor = themeProvider->GetNSColor(
@@ skipping 340 matching lines @@
   if (visualEffectsDisabledForFullscreen_ ||
       themeProvider->HasCustomImage(IDR_THEME_FRAME) ||
       themeProvider->HasCustomColor(ThemeProperties::COLOR_FRAME)) {
     [visualEffectView setState:NSVisualEffectStateInactive];
   } else {
     [visualEffectView setState:NSVisualEffectStateFollowsWindowActiveState];
   }
 }
 
 @end