Use exact pixel sizes instead of dip in webapp/WebAPK installability code

chrome/browser/android/banners/app_banner_manager_android.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_MANAGER_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_MANAGER_ANDROID_H_
 
 #include <string>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 50 matching lines @@
   base::Closure FetchWebappSplashScreenImageCallback(
       const std::string& webapp_id) override;
 
   // Registers native methods.
   static bool Register(JNIEnv* env);
 
  protected:
   // AppBannerManager overrides.
   std::string GetAppIdentifier() override;
   std::string GetBannerType() override;
-  int GetIdealIconSizeInDp() override;
-  int GetMinimumIconSizeInDp() override;
+  int GetIdealIconSizeInPx() override;
+  int GetMinimumIconSizeInPx() override;
   bool IsWebAppInstalled(content::BrowserContext* browser_context,
                          const GURL& start_url) override;
 
   void PerformInstallableCheck() override;
   void OnAppIconFetched(const SkBitmap& bitmap) override;
   void ShowBanner() override;
 
  private:
   friend class content::WebContentsUserData<AppBannerManagerAndroid>;
 
@@ skipping 25 matching lines @@
 
   // App package name for a native app banner.
   std::string native_app_package_;
 
   DISALLOW_COPY_AND_ASSIGN(AppBannerManagerAndroid);
 };
 
 }  // namespace banners
 
 #endif  // CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_MANAGER_ANDROID_H_