Fix tab strip rendering at non-integral scale factors in MD.

chrome/browser/ui/views/frame/browser_view.cc

 // Copyright 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/views/frame/browser_view.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 522 matching lines @@
 }
 
 // static
 void BrowserView::Paint1pxHorizontalLine(gfx::Canvas* canvas,
                                          SkColor color,
                                          const gfx::Rect& bounds,
                                          bool at_bottom) {
   gfx::ScopedCanvas scoped_canvas(canvas);
   const float scale = canvas->UndoDeviceScaleFactor();
   gfx::RectF rect(gfx::ScaleRect(gfx::RectF(bounds), scale));
-  const int inset = rect.height() - 1;
+  const float inset = rect.height() - 1;
   rect.Inset(0, at_bottom ? inset : 0, 0, at_bottom ? 0 : inset);
   SkPaint paint;
   paint.setColor(color);
   canvas->sk_canvas()->drawRect(gfx::RectFToSkRect(rect), paint);
 }
 
 void BrowserView::InitStatusBubble() {
   status_bubble_.reset(new StatusBubbleViews(contents_web_view_));
   contents_web_view_->SetStatusBubble(status_bubble_.get());
 }
@@ skipping 2098 matching lines @@
 }
 
 extensions::ActiveTabPermissionGranter*
 BrowserView::GetActiveTabPermissionGranter() {
   content::WebContents* web_contents = GetActiveWebContents();
   if (!web_contents)
     return nullptr;
   return extensions::TabHelper::FromWebContents(web_contents)
       ->active_tab_permission_granter();
 }