favor DCHECK_CURRENTLY_ON for better logs in content/browser/[f-p]*

content/browser/power_save_blocker_chromeos.cc

 // 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.
 
 #include "content/browser/power_save_blocker_impl.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 26 matching lines @@
 
 class PowerSaveBlockerImpl::Delegate
     : public base::RefCountedThreadSafe<PowerSaveBlockerImpl::Delegate> {
  public:
   Delegate(PowerSaveBlockerType type,
            Reason reason,
            const std::string& description)
       : type_(type), reason_(reason), description_(description), block_id_(0) {}
 
   void ApplyBlock() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+    DCHECK_CURRENTLY_ON(BrowserThread::UI);
     if (!chromeos::PowerPolicyController::IsInitialized())
       return;
 
     auto* controller = chromeos::PowerPolicyController::Get();
     switch (type_) {
       case kPowerSaveBlockPreventAppSuspension:
         block_id_ = controller->AddSystemWakeLock(GetWakeLockReason(reason_),
                                                   description_);
         break;
       case kPowerSaveBlockPreventDisplaySleep:
         block_id_ = controller->AddScreenWakeLock(GetWakeLockReason(reason_),
                                                   description_);
         break;
       default:
         NOTREACHED() << "Unhandled block type " << type_;
     }
   }
 
   void RemoveBlock() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+    DCHECK_CURRENTLY_ON(BrowserThread::UI);
     if (!chromeos::PowerPolicyController::IsInitialized())
       return;
 
     chromeos::PowerPolicyController::Get()->RemoveWakeLock(block_id_);
   }
 
  private:
   friend class base::RefCountedThreadSafe<Delegate>;
   virtual ~Delegate() {}
 
@@ skipping 14 matching lines @@
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(&Delegate::ApplyBlock, delegate_));
 }
 
 PowerSaveBlockerImpl::~PowerSaveBlockerImpl() {
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(&Delegate::RemoveBlock, delegate_));
 }
 
 }  // namespace content