Make operators on scoped_ptr match the ones defined for std::unique_ptr

cc/raster/one_copy_tile_task_worker_pool.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 "cc/raster/one_copy_tile_task_worker_pool.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/strings/stringprintf.h"
@@ skipping 522 matching lines @@
   busy_buffers_.push_back(staging_buffer.Pass());
 
   ScheduleReduceMemoryUsage();
 }
 
 bool OneCopyTileTaskWorkerPool::OnMemoryDump(
     const base::trace_event::MemoryDumpArgs& args,
     base::trace_event::ProcessMemoryDump* pmd) {
   base::AutoLock lock(lock_);
 
-  for (const auto& buffer : buffers_) {
+  for (const auto* buffer : buffers_) {
+    auto in_free_buffers =
+        std::find_if(free_buffers_.begin(), free_buffers_.end(),
+                     [buffer](const scoped_ptr<StagingBuffer>& b) {
+                       return b.get() == buffer;
+                     });
     buffer->OnMemoryDump(pmd, buffer->format,
-                         std::find(free_buffers_.begin(), free_buffers_.end(),
-                                   buffer) != free_buffers_.end());
+                         in_free_buffers != free_buffers_.end());
   }
 
   return true;
 }
 
 void OneCopyTileTaskWorkerPool::AddStagingBuffer(
     const StagingBuffer* staging_buffer,
     ResourceFormat format) {
   lock_.AssertAcquired();
 
@@ skipping 262 matching lines @@
 
   staging_state->SetInteger("staging_buffer_count",
                             static_cast<int>(buffers_.size()));
   staging_state->SetInteger("busy_count",
                             static_cast<int>(busy_buffers_.size()));
   staging_state->SetInteger("free_count",
                             static_cast<int>(free_buffers_.size()));
 }
 
 }  // namespace cc