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

chrome/browser/banners/app_banner_manager.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_BANNERS_APP_BANNER_MANAGER_H_
 #define CHROME_BROWSER_BANNERS_APP_BANNER_MANAGER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 93 matching lines @@
 
   // Return a string describing what type of banner is being created. Used when
   // alerting websites that a banner is about to be created.
   virtual std::string GetBannerType();
 
   // Returns a string parameter for a devtools console message corresponding to
   // |code|. Returns the empty string if |code| requires no parameter.
   std::string GetStatusParam(InstallableStatusCode code);
 
   // Returns the ideal and minimum icon sizes required for being installable.
-  virtual int GetIdealIconSizeInDp();
-  virtual int GetMinimumIconSizeInDp();
+  virtual int GetIdealIconSizeInPx();
+  virtual int GetMinimumIconSizeInPx();
 
   // Returns a WeakPtr to this object. Exposed so subclasses/infobars may
   // may bind callbacks without needing their own WeakPtrFactory.
   base::WeakPtr<AppBannerManager> GetWeakPtr();
 
   // Returns true if |is_debug_mode_| is true or the
   // kBypassAppBannerEngagementChecks flag is set.
   virtual bool IsDebugMode() const;
 
   // Returns true if the webapp at |start_url| has already been installed.
@@ skipping 143 matching lines @@
   // scoped to the WebContents which they are observing. This allows us to use
   // weak pointers for callbacks.
   base::WeakPtrFactory<AppBannerManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppBannerManager);
 };
 
 }  // namespace banners
 
 #endif  // CHROME_BROWSER_BANNERS_APP_BANNER_MANAGER_H_