Remove unused DataReductionProxyInfoBar and related code

components/infobars/core/infobar_delegate.h

 // Copyright 2014 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 COMPONENTS_INFOBARS_CORE_INFOBAR_DELEGATE_H_
 #define COMPONENTS_INFOBARS_CORE_INFOBAR_DELEGATE_H_
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
@@ skipping 43 matching lines @@
   };
 
   enum InfoBarAutomationType {
     CONFIRM_INFOBAR,
     PASSWORD_INFOBAR,
     RPH_INFOBAR,
     UNKNOWN_INFOBAR,
   };
 
   // Unique identifier for every InfoBarDelegate subclass.
   // KEEP IN SYNC WITH THE InfoBarIdentifier ENUM IN histograms.xml.

[sdefresne, 2016/05/20 12:51:07]

Do you need to mark the enum value as obsolete in histograms.xml too?

[megjablon, 2016/05/20 18:52:14]

Done.

   // NEW VALUES MUST BE APPENDED AND AVOID CHANGING ANY PRE-EXISTING VALUES.
   // A Java counterpart will be generated for this enum.
   // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.chrome.browser.infobar
   enum InfoBarIdentifier {
     INVALID = -1,
     TEST_INFOBAR = 0,
     APP_BANNER_INFOBAR_DELEGATE_ANDROID = 1,
     APP_BANNER_INFOBAR_DELEGATE_DESKTOP = 2,
     ANDROID_DOWNLOAD_MANAGER_OVERWRITE_INFOBAR_DELEGATE = 3,
     CHROME_DOWNLOAD_MANAGER_OVERWRITE_INFOBAR_DELEGATE = 4,
     DOWNLOAD_REQUEST_INFOBAR_DELEGATE_ANDROID = 5,
     FULLSCREEN_INFOBAR_DELEGATE = 6,
     HUNG_PLUGIN_INFOBAR_DELEGATE = 7,
     HUNG_RENDERER_INFOBAR_DELEGATE = 8,
     MEDIA_STREAM_INFOBAR_DELEGATE_ANDROID = 9,
     MEDIA_THROTTLE_INFOBAR_DELEGATE = 10,
     REQUEST_QUOTA_INFOBAR_DELEGATE = 11,
     DEV_TOOLS_CONFIRM_INFOBAR_DELEGATE = 12,
     EXTENSION_DEV_TOOLS_INFOBAR_DELEGATE = 13,
     INCOGNITO_CONNECTABILITY_INFOBAR_DELEGATE = 14,
     THEME_INSTALLED_INFOBAR_DELEGATE = 15,
     GEOLOCATION_INFOBAR_DELEGATE_ANDROID = 16,
     THREE_D_API_INFOBAR_DELEGATE = 17,
     INSECURE_CONTENT_INFOBAR_DELEGATE = 18,
     MIDI_PERMISSION_INFOBAR_DELEGATE_ANDROID = 19,
     PROTECTED_MEDIA_IDENTIFIER_INFOBAR_DELEGATE_ANDROID = 20,
     NACL_INFOBAR_DELEGATE = 21,
-    DATA_REDUCTION_PROXY_INFOBAR_DELEGATE_ANDROID = 22,
+    // Removed: DATA_REDUCTION_PROXY_INFOBAR_DELEGATE_ANDROID = 22,
     NOTIFICATION_PERMISSION_INFOBAR_DELEGATE = 23,
     AUTO_SIGNIN_FIRST_RUN_INFOBAR_DELEGATE = 24,
     GENERATED_PASSWORD_SAVED_INFOBAR_DELEGATE_ANDROID = 25,
     SAVE_PASSWORD_INFOBAR_DELEGATE = 26,
     PEPPER_BROKER_INFOBAR_DELEGATE = 27,
     PERMISSION_UPDATE_INFOBAR_DELEGATE = 28,
     DURABLE_STORAGE_PERMISSION_INFOBAR_DELEGATE_ANDROID = 29,
     // Removed: NPAPI_REMOVAL_INFOBAR_DELEGATE = 30,
     OUTDATED_PLUGIN_INFOBAR_DELEGATE = 31,
     PLUGIN_METRO_MODE_INFOBAR_DELEGATE = 32,
@@ skipping 129 matching lines @@
 
   // The ID of the active navigation entry at the time we became owned.
   int nav_entry_id_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarDelegate);
 };
 
 }  // namespace infobars
 
 #endif  // COMPONENTS_INFOBARS_CORE_INFOBAR_DELEGATE_H_