Remove a bunch of TOOLKIT_GTK in content/ and gpu/, as well as NPAPI plugins on linux

content/renderer/webscrollbarbehavior_impl_gtkoraura.cc

 // Copyright 2014 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 "content/renderer/webscrollbarbehavior_impl_gtkoraura.h"
 
 #include "third_party/WebKit/public/platform/WebPoint.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 
 namespace content {
 
 bool WebScrollbarBehaviorImpl::shouldCenterOnThumb(
       blink::WebScrollbarBehavior::Button mouseButton,
       bool shiftKeyPressed,
       bool altKeyPressed) {
-#if defined(TOOLKIT_GTK) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
+#if (defined(OS_LINUX) && !defined(OS_CHROMEOS))
   if (mouseButton == blink::WebScrollbarBehavior::ButtonMiddle)
     return true;
 #endif
   return (mouseButton == blink::WebScrollbarBehavior::ButtonLeft) &&
       shiftKeyPressed;
 }
 
 bool WebScrollbarBehaviorImpl::shouldSnapBackToDragOrigin(
     const blink::WebPoint& eventPoint,
     const blink::WebRect& scrollbarRect,
     bool isHorizontal) {
-#if defined(TOOLKIT_GTK)
-  return false;
-#endif
-
   // Constants used to figure the drag rect outside which we should snap the
   // scrollbar thumb back to its origin. These calculations are based on
   // observing the behavior of the MSVC8 main window scrollbar + some
   // guessing/extrapolation.
   static const int kOffEndMultiplier = 3;
   static const int kOffSideMultiplier = 8;
 
   // Find the rect within which we shouldn't snap, by expanding the track rect
   // in both dimensions.
   gfx::Rect noSnapRect(scrollbarRect);
   const int thickness = isHorizontal ? noSnapRect.height() : noSnapRect.width();
   noSnapRect.Inset(
       (isHorizontal ? kOffEndMultiplier : kOffSideMultiplier) * -thickness,
       (isHorizontal ? kOffSideMultiplier : kOffEndMultiplier) * -thickness);
 
   // We should snap iff the event is outside our calculated rect.
   return !noSnapRect.Contains(eventPoint);
 }
 
-}  // namespace content
+}  // namespace content