[Mac] Finish implementation of App Tabs.

chrome/browser/cocoa/tab_view.mm

 // Copyright (c) 2010 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/cocoa/tab_view.h"
 
 #include "base/logging.h"
 #include "base/nsimage_cache_mac.h"
 #include "chrome/browser/browser_theme_provider.h"
 #import "chrome/browser/cocoa/tab_controller.h"
@@ skipping 592 matching lines @@
   if ([controller_ phantom])
     return;
 
   NSGraphicsContext* context = [NSGraphicsContext currentContext];
   [context saveGraphicsState];
   rect = [self bounds];
   BOOL active = [[self window] isKeyWindow] || [[self window] isMainWindow];
   BOOL selected = [self state];
 
   // Outset by 0.5 in order to draw on pixels rather than on borders (which
-  // would cause blurry pixels). For non-app tabs, subtract 1px of height to
-  // compensate, otherwise clipping will occur.
+  // would cause blurry pixels). Subtract 1px of height to compensate, otherwise
+  // clipping will occur.
   rect = NSInsetRect(rect, -0.5, -0.5);
-  if ([controller_ app])
-    rect.size.height = 12.0;
-  else
-    rect.size.height -= 1.0;
+  rect.size.height -= 1.0;
 
   NSPoint bottomLeft = NSMakePoint(NSMinX(rect), NSMinY(rect) + 2);
   NSPoint bottomRight = NSMakePoint(NSMaxX(rect), NSMinY(rect) + 2);
   NSPoint topRight =
       NSMakePoint(NSMaxX(rect) - kInsetMultiplier * NSHeight(rect),
                   NSMaxY(rect));
   NSPoint topLeft =
       NSMakePoint(NSMinX(rect)  + kInsetMultiplier * NSHeight(rect),
                   NSMaxY(rect));
 
@@ skipping 330 matching lines @@
   }
 
   if (nextUpdate < kNoUpdate)
     [self performSelector:_cmd withObject:nil afterDelay:nextUpdate];
 
   [self resetLastGlowUpdateTime];
   [self setNeedsDisplay:YES];
 }
 
 @end  // @implementation TabView(Private)