[Refactor] Change FaviconService API to take in a desired pixel size

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
index 33c5196f6746336376034357092ad4b363cf1ff2..8ba4e5c5c0b9239516b54ef33903c427e518658c 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
@@ -60,7 +60,6 @@
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/webui/web_ui_util.h"
-#include "ui/gfx/favicon_size.h"
 #include "url/gurl.h"
 
 using content::WebContents;
@@ -701,8 +700,7 @@ void AppLauncherHandler::HandleGenerateAppForLink(const base::ListValue* args) {
   install_info->page_ordinal = page_ordinal;
 
   favicon_service->GetFaviconImageForPageURL(
-      FaviconService::FaviconForPageURLParams(
-          launch_url, favicon_base::FAVICON, gfx::kFaviconSize),
+      launch_url,
       base::Bind(&AppLauncherHandler::OnFaviconForApp,
                  base::Unretained(this),
                  base::Passed(&install_info)),