cc: Remove some unnecessary const scoped_refptr&.

cc/output/output_surface.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 "cc/output/output_surface.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 101 matching lines @@
 
   base::trace_event::ProcessMemoryDump* pmd_;
   uint64_t share_group_tracing_guid_;
 
   DISALLOW_COPY_AND_ASSIGN(SkiaGpuTraceMemoryDump);
 };
 
 }  // namespace
 
 OutputSurface::OutputSurface(
-    const scoped_refptr<ContextProvider>& context_provider,
-    const scoped_refptr<ContextProvider>& worker_context_provider,
+    scoped_refptr<ContextProvider> context_provider,
+    scoped_refptr<ContextProvider> worker_context_provider,
     scoped_ptr<SoftwareOutputDevice> software_device)
     : client_(NULL),
-      context_provider_(context_provider),
-      worker_context_provider_(worker_context_provider),
+      context_provider_(std::move(context_provider)),
+      worker_context_provider_(std::move(worker_context_provider)),
       software_device_(std::move(software_device)),
       device_scale_factor_(-1),
       has_alpha_(true),
       external_stencil_test_enabled_(false),
       weak_ptr_factory_(this) {
   client_thread_checker_.DetachFromThread();
 }
 
-OutputSurface::OutputSurface(
-    const scoped_refptr<ContextProvider>& context_provider)
-    : OutputSurface(context_provider, nullptr, nullptr) {
-}
+OutputSurface::OutputSurface(scoped_refptr<ContextProvider> context_provider)
+    : OutputSurface(std::move(context_provider), nullptr, nullptr) {}
 
 OutputSurface::OutputSurface(
-    const scoped_refptr<ContextProvider>& context_provider,
-    const scoped_refptr<ContextProvider>& worker_context_provider)
-    : OutputSurface(context_provider, worker_context_provider, nullptr) {
-}
+    scoped_refptr<ContextProvider> context_provider,
+    scoped_refptr<ContextProvider> worker_context_provider)
+    : OutputSurface(std::move(context_provider),
+                    std::move(worker_context_provider),
+                    nullptr) {}
 
 OutputSurface::OutputSurface(scoped_ptr<SoftwareOutputDevice> software_device)
     : OutputSurface(nullptr, nullptr, std::move(software_device)) {}
 
-OutputSurface::OutputSurface(
-    const scoped_refptr<ContextProvider>& context_provider,
-    scoped_ptr<SoftwareOutputDevice> software_device)
-    : OutputSurface(context_provider, nullptr, std::move(software_device)) {}
+OutputSurface::OutputSurface(scoped_refptr<ContextProvider> context_provider,
+                             scoped_ptr<SoftwareOutputDevice> software_device)
+    : OutputSurface(std::move(context_provider),
+                    nullptr,
+                    std::move(software_device)) {}
 
 void OutputSurface::CommitVSyncParameters(base::TimeTicks timebase,
                                           base::TimeDelta interval) {
   TRACE_EVENT2("cc",
                "OutputSurface::CommitVSyncParameters",
                "timebase",
                (timebase - base::TimeTicks()).InSecondsF(),
                "interval",
                interval.InSecondsF());
   client_->CommitVSyncParameters(timebase, interval);
@@ skipping 192 matching lines @@
   if (context_provider_.get()) {
     context_provider_->SetLostContextCallback(
         ContextProvider::LostContextCallback());
   }
   context_provider_ = nullptr;
   client_ = nullptr;
   weak_ptr_factory_.InvalidateWeakPtrs();
 }
 
 }  // namespace cc