TopSites: various small cleanups

chrome/browser/search/thumbnail_source.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 "chrome/browser/search/thumbnail_source.h"
 
 #include "base/callback.h"
 #include "base/memory/ref_counted_memory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/instant_io_context.h"
@@ skipping 23 matching lines @@
 
 void ThumbnailSource::StartDataRequest(
     const std::string& path,
     const content::ResourceRequestInfo::WebContentsGetter& wc_getter,
     const content::URLDataSource::GotDataCallback& callback) {
   GURL page_url;
   GURL fallback_thumbnail_url;
   ExtractPageAndThumbnailUrls(path, &page_url, &fallback_thumbnail_url);
 
   scoped_refptr<base::RefCountedMemory> data;
-  if (page_url.is_valid() &&
-      thumbnail_service_->GetPageThumbnail(page_url, capture_thumbnails_,
-                                           &data)) {
+  if (page_url.is_valid() && thumbnail_service_->GetPageThumbnail(
+                                 page_url,
+                                 /*prefix_match=*/capture_thumbnails_, &data)) {
     // If a local thumbnail is available for the page's URL, provide it.
     callback.Run(data.get());
   } else if (fallback_thumbnail_url.is_valid()) {
     // Otherwise, if a fallback thumbnail URL was provided, fetch it and
     // eventually return it.
     image_data_fetcher_.FetchImageData(
         fallback_thumbnail_url,
         base::Bind(&ThumbnailSource::SendFetchedUrlImage,
                    weak_ptr_factory_.GetWeakPtr(), callback));
   } else {
@@ skipping 59 matching lines @@
     const content::URLDataSource::GotDataCallback& callback,
     const std::string& image_data,
     const image_fetcher::RequestMetadata& metadata) {
   if (image_data.empty()) {
     callback.Run(nullptr);
     return;
   }
   std::string image_data_copy = image_data;
   callback.Run(base::RefCountedString::TakeString(&image_data_copy));
 }