Remove unused fields from //content.

content/browser/compositor/gpu_process_transport_factory.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/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 150 matching lines @@
 #if defined(USE_OZONE)
   std::unique_ptr<ui::OverlayCandidatesOzone> overlay_candidates =
       ui::OzonePlatform::GetInstance()
           ->GetOverlayManager()
           ->CreateOverlayCandidates(widget);
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (overlay_candidates &&
       (command_line->HasSwitch(switches::kEnableHardwareOverlays) ||
        command_line->HasSwitch(switches::kOzoneTestSingleOverlaySupport))) {
     validator.reset(new BrowserCompositorOverlayCandidateValidatorOzone(
-        widget, std::move(overlay_candidates)));
+        std::move(overlay_candidates)));
   }
 #elif defined(OS_MACOSX)
   // Overlays are only supported through the remote layer API.
   if (ui::RemoteLayerAPISupported()) {
-    validator.reset(new BrowserCompositorOverlayCandidateValidatorMac(widget));
+    validator.reset(new BrowserCompositorOverlayCandidateValidatorMac());
   }
 #elif defined(OS_ANDROID)
   validator.reset(new BrowserCompositorOverlayCandidateValidatorAndroid());
 #endif
 
   return validator;
 }
 
 static bool ShouldCreateGpuOutputSurface(ui::Compositor* compositor) {
 #if defined(MOJO_RUNNER_CLIENT)
@@ skipping 488 matching lines @@
   FOR_EACH_OBSERVER(ImageTransportFactoryObserver,
                     observer_list_,
                     OnLostResources());
 
   // Kill things that use the shared context before killing the shared context.
   lost_gl_helper.reset();
   lost_shared_main_thread_contexts  = NULL;
 }
 
 }  // namespace content