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

content/browser/fileapi/chrome_blob_storage_context.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/fileapi/chrome_blob_storage_context.h"
 
 #include "base/bind.h"
 #include "base/guid.h"
 #include "content/public/browser/blob_handle.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 42 matching lines @@
           BrowserThread::IO, FROM_HERE,
           base::Bind(&ChromeBlobStorageContext::InitializeOnIOThread, blob));
     }
   }
 
   return UserDataAdapter<ChromeBlobStorageContext>::Get(
       context, kBlobStorageContextKeyName);
 }
 
 void ChromeBlobStorageContext::InitializeOnIOThread() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   context_.reset(new BlobStorageContext());
 }
 
 scoped_ptr<BlobHandle> ChromeBlobStorageContext::CreateMemoryBackedBlob(
     const char* data, size_t length) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   std::string uuid(base::GenerateGUID());
   storage::BlobDataBuilder blob_data_builder(uuid);
   blob_data_builder.AppendData(data, length);
 
   scoped_ptr<storage::BlobDataHandle> blob_data_handle =
       context_->AddFinishedBlob(&blob_data_builder);
   if (!blob_data_handle)
     return scoped_ptr<BlobHandle>();
 
   scoped_ptr<BlobHandle> blob_handle(
       new BlobHandleImpl(blob_data_handle.Pass()));
   return blob_handle.Pass();
 }
 
 scoped_ptr<BlobHandle> ChromeBlobStorageContext::CreateFileBackedBlob(
     const base::FilePath& path,
     int64_t offset,
     int64_t size,
     const base::Time& expected_modification_time) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   std::string uuid(base::GenerateGUID());
   storage::BlobDataBuilder blob_data_builder(uuid);
   blob_data_builder.AppendFile(path, offset, size, expected_modification_time);
 
   scoped_ptr<storage::BlobDataHandle> blob_data_handle =
       context_->AddFinishedBlob(&blob_data_builder);
   if (!blob_data_handle)
     return scoped_ptr<BlobHandle>();
 
   scoped_ptr<BlobHandle> blob_handle(
       new BlobHandleImpl(blob_data_handle.Pass()));
   return blob_handle.Pass();
 }
 
 ChromeBlobStorageContext::~ChromeBlobStorageContext() {}
 
 void ChromeBlobStorageContext::DeleteOnCorrectThread() const {
   if (BrowserThread::IsMessageLoopValid(BrowserThread::IO) &&
       !BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE, this);
     return;
   }
   delete this;
 }
 
 }  // namespace content