Implementing URL prefix match for history thumbnail cache.

chrome/browser/thumbnails/thumbnail_service_impl.h

Index: chrome/browser/thumbnails/thumbnail_service_impl.h
diff --git a/chrome/browser/thumbnails/thumbnail_service_impl.h b/chrome/browser/thumbnails/thumbnail_service_impl.h
index 4a05a8a8ff7cf61d40dee09737312657431e7a03..931650116a9527cb9debe3d118c869af30e19b18 100644
--- a/chrome/browser/thumbnails/thumbnail_service_impl.h
+++ b/chrome/browser/thumbnails/thumbnail_service_impl.h
@@ -28,6 +28,7 @@ class ThumbnailServiceImpl : public ThumbnailService {
   virtual ThumbnailingAlgorithm* GetThumbnailingAlgorithm() const OVERRIDE;
   virtual bool GetPageThumbnail(
       const GURL& url,
+      bool prefix_match,
       scoped_refptr<base::RefCountedMemory>* bytes) OVERRIDE;
   virtual bool ShouldAcquirePageThumbnail(const GURL& url) OVERRIDE;
 
@@ -43,6 +44,6 @@ class ThumbnailServiceImpl : public ThumbnailService {
   DISALLOW_COPY_AND_ASSIGN(ThumbnailServiceImpl);
 };
 
-}
+}  // namespace thumbnails
 
 #endif  // CHROME_BROWSER_THUMBNAILS_THUMBNAIL_SERVICE_IMPL_H_