Remove page IDs from three WebContentsObserver APIs that don't need it.

chrome/browser/ui/ash/launcher/launcher_favicon_loader.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/ui/ash/launcher/launcher_favicon_loader.h"
 
 #include "ash/shelf/shelf_constants.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 23 matching lines @@
   }
 
   virtual ~FaviconBitmapHandler() {}
 
   const SkBitmap& bitmap() const { return bitmap_; }
 
   bool HasPendingDownloads() const;
 
   // content::WebContentObserver implementation.
   virtual void DidUpdateFaviconURL(
-    int32 page_id,
     const std::vector<content::FaviconURL>& candidates) OVERRIDE;
 
  private:
   void DidDownloadFavicon(
       int id,
       int http_status_code,
       const GURL& image_url,
       const std::vector<SkBitmap>& bitmaps,
       const std::vector<gfx::Size>& original_bitmap_sizes);
 
@@ skipping 11 matching lines @@
   // Current bitmap and source url.
   SkBitmap bitmap_;
   GURL bitmap_url_;
 
   base::WeakPtrFactory<FaviconBitmapHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FaviconBitmapHandler);
 };
 
 void FaviconBitmapHandler::DidUpdateFaviconURL(
-    int32 page_id,
     const std::vector<content::FaviconURL>& candidates) {
   // This function receives a complete list of faviocn urls for the page.
   // It may get called multiple times with the same list, and will also get
   // called any time an item is added or removed. As such, we track processed
   // and pending urls, but only until they are removed from the list.
   UrlSet new_pending, new_processed;
   // Create a map of valid favicon urls.
   std::set<GURL> urls;
   std::vector<content::FaviconURL>::const_iterator iter;
   for (iter = candidates.begin(); iter != candidates.end(); ++iter) {
@@ skipping 86 matching lines @@
 LauncherFaviconLoader::~LauncherFaviconLoader() {
 }
 
 SkBitmap LauncherFaviconLoader::GetFavicon() const {
   return favicon_handler_->bitmap();
 }
 
 bool LauncherFaviconLoader::HasPendingDownloads() const {
   return favicon_handler_->HasPendingDownloads();
 }