DevTools: do not respect Chrome theme in DevTools, align toolbar items.

Source/devtools/front_end/inspectorStyle.css

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Anthony Ricaud <rik@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 66 matching lines @@
 }
 
 .toolbar-background {
     padding-left: 1px;
     border-bottom: 1px solid rgb(64%, 64%, 64%);
     background-origin: padding-box;
     background-clip: padding-box;
 }
 
 .inspector-view-toolbar-left {
-    padding-left: 2px;
     margin-right: -5px; /* Should compensate for .tabbed-pane-header-contents margin-left. */
 }
 
-.inspector-view-close-button {
-    cursor: default;
-    width: 28px;
-    padding-left: 8px;
-}
-
-.material .inspector-view-close-button {
-    width: 32px;
-}
-
-body.undocked .inspector-view-close-button {
-    display: none;
-}
-
 .bubble-repeat-count {
     display: inline-block;
     height: 14px;
     background-color: rgb(128, 151, 189);
     vertical-align: middle;
     white-space: nowrap;
     padding: 1px 4px;
     text-align: left;
     font-size: 11px;
     line-height: normal;
@@ skipping 528 matching lines @@
 }
 
 body.inactive select.chrome-select,
 .chrome-select:disabled {
     background-image: -webkit-image-set(url(Images/chromeDisabledSelect.png) 1x, url(Images/chromeDisabledSelect_2x.png) 2x), linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
     border-color: rgba(80, 80, 80, 0.2);
     box-shadow: 0 1px 0 rgba(80, 80, 80, 0.08),
     inset 0 1px 2px rgba(255, 255, 255, 0.75);
     color: #aaa;
 }