Remove ChromeBrowserProvider::GetFaviconForURL().

ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h

Index: ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h
diff --git a/ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h b/ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h
index 50300972b04b2e31ecce252b8810208042535186..7b3fa59c64437d4ef3b1734fa3abf8a934eef959 100644
--- a/ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h
+++ b/ios/chrome/browser/ui/webui/chrome_web_ui_ios_controller_factory.h
@@ -9,18 +9,8 @@
 
 #include "base/macros.h"
 #include "base/memory/singleton.h"
-#include "components/favicon_base/favicon_callback.h"
 #include "ios/web/public/webui/web_ui_ios.h"
 #include "ios/web/public/webui/web_ui_ios_controller_factory.h"
-#include "ui/base/layout.h"
-
-namespace base {
-class RefCountedMemory;
-}
-
-namespace ios {
-class ChromeBrowserState;
-}
 
 class GURL;
 
@@ -32,14 +22,6 @@ class ChromeWebUIIOSControllerFactory : public web::WebUIIOSControllerFactory {
 
   static ChromeWebUIIOSControllerFactory* GetInstance();
 
-  // Get the favicon for |page_url| and run |callback| with result when loaded.
-  // Note. |callback| is always run asynchronously.
-  void GetFaviconForURL(
-      ios::ChromeBrowserState* browser_state,
-      const GURL& page_url,
-      const std::vector<int>& desired_sizes_in_pixel,
-      const favicon_base::FaviconResultsCallback& callback) const;
-
  protected:
   ChromeWebUIIOSControllerFactory();
   ~ChromeWebUIIOSControllerFactory() override;
@@ -47,14 +29,6 @@ class ChromeWebUIIOSControllerFactory : public web::WebUIIOSControllerFactory {
  private:
   friend struct base::DefaultSingletonTraits<ChromeWebUIIOSControllerFactory>;
 
-  // Gets the data for the favicon for a WebUIIOS page. Returns nullptr if the
-  // WebUIIOS does not have a favicon.
-  // The returned favicon data must be |gfx::kFaviconSize| x |gfx::kFaviconSize|
-  // DIP. GetFaviconForURL() should be updated if this changes.
-  base::RefCountedMemory* GetFaviconResourceBytes(
-      const GURL& page_url,
-      ui::ScaleFactor scale_factor) const;
-
   DISALLOW_COPY_AND_ASSIGN(ChromeWebUIIOSControllerFactory);
 };