cc: Remove unused use_pinch_zoom_scrollbars flag.

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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/gpu/render_widget_compositor.h"
 
 #include <limits>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 415 matching lines @@
 
   // TODO(danakj): Only do this on low end devices.
   settings.create_low_res_tiling = true;
 
   settings.use_external_begin_frame_source = true;
 
 #elif !defined(OS_MACOSX)
   if (ui::IsOverlayScrollbarEnabled()) {
     settings.scrollbar_animator = cc::LayerTreeSettings::THINNING;
     settings.solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128);
-  } else if (cmd->HasSwitch(cc::switches::kEnablePinchVirtualViewport)) {
-    // use_pinch_zoom_scrollbars is only true on desktop when non-overlay
-    // scrollbars are in use.
-    settings.use_pinch_zoom_scrollbars = true;
+  } else if (settings.use_pinch_virtual_viewport) {
     settings.scrollbar_animator = cc::LayerTreeSettings::LINEAR_FADE;
     settings.solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128);
   }
   settings.scrollbar_fade_delay_ms = 500;
   settings.scrollbar_fade_resize_delay_ms = 500;
   settings.scrollbar_fade_duration_ms = 300;
 
   // When pinching in, only show the pinch-viewport overlay scrollbars if the
   // page scale is at least some threshold away from the minimum. i.e. don't
   // show the pinch scrollbars when at minimum scale.
@@ skipping 517 matching lines @@
   cc::ContextProvider* provider =
       compositor_deps_->GetSharedMainThreadContextProvider();
   // provider can be NULL after the GPU process crashed enough times and we
   // don't want to restart it any more (falling back to software).
   if (!provider)
     return;
   provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
 }
 
 }  // namespace content