Use base::FastHash() in //android_webview

Bug: 1025358
Change-Id: Iadef27f215c7a4dccd307ad32f4fbe5649403fb7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1919821
Auto-Submit: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#716348}

android_webview/browser/icon_helper.cc

@@ -106,12 +106,12 @@ void IconHelper::DidStartNavigationToPendingEntry(
 }
 
 void IconHelper::MarkUnableToDownloadFavicon(const GURL& icon_url) {
-  MissingFaviconURLHash url_hash = base::Hash(icon_url.spec());
+  MissingFaviconURLHash url_hash = base::FastHash(icon_url.spec());
   missing_favicon_urls_.insert(url_hash);
 }
 
 bool IconHelper::WasUnableToDownloadFavicon(const GURL& icon_url) const {
-  MissingFaviconURLHash url_hash = base::Hash(icon_url.spec());
+  MissingFaviconURLHash url_hash = base::FastHash(icon_url.spec());
   return missing_favicon_urls_.find(url_hash) != missing_favicon_urls_.end();
 }
 

android_webview/browser/icon_helper.h

@@ -67,7 +67,7 @@ class IconHelper : public content::WebContentsObserver {
 
   Listener* listener_;
 
-  typedef uint32_t MissingFaviconURLHash;
+  using MissingFaviconURLHash = size_t;
   std::unordered_set<MissingFaviconURLHash> missing_favicon_urls_;
 
   DISALLOW_COPY_AND_ASSIGN(IconHelper);