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

content/browser/renderer_host/render_widget_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 119 matching lines @@
   virtual void CopyFromBackingStore(
       const gfx::Rect& src_rect,
       const gfx::Size& accelerated_dst_size,
       const base::Callback<void(bool, const SkBitmap&)>& callback,
       const SkBitmap::Config& bitmap_config) OVERRIDE;
   virtual bool CanCopyFromBackingStore() OVERRIDE;
 #if defined(OS_ANDROID)
   virtual void LockBackingStore() OVERRIDE;
   virtual void UnlockBackingStore() OVERRIDE;
 #endif
-#if defined(TOOLKIT_GTK)
-  virtual bool CopyFromBackingStoreToGtkWindow(const gfx::Rect& dest_rect,
-                                               GdkWindow* target) OVERRIDE;
-#elif defined(OS_MACOSX)
+#if defined(OS_MACOSX)
   virtual gfx::Size GetBackingStoreSize() OVERRIDE;
   virtual bool CopyFromBackingStoreToCGContext(const CGRect& dest_rect,
                                                CGContextRef target) OVERRIDE;
 #endif
   virtual void EnableFullAccessibilityMode() OVERRIDE;
   virtual bool IsFullAccessibilityModeForTesting() OVERRIDE;
   virtual void EnableTreeOnlyAccessibilityMode() OVERRIDE;
   virtual bool IsTreeOnlyAccessibilityModeForTesting() OVERRIDE;
   virtual void ForwardMouseEvent(
       const blink::WebMouseEvent& mouse_event) OVERRIDE;
@@ skipping 780 matching lines @@
   std::queue<base::Callback<void(bool, const SkBitmap&)> > pending_snapshots_;
 
   int64 last_input_number_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_