Remove unused in-process pepper APIs

ppapi/thunk/ppb_instance_api.h

 // Copyright (c) 2012 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 PPAPI_THUNK_INSTANCE_API_H_
 #define PPAPI_THUNK_INSTANCE_API_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/dev/ppb_url_util_dev.h"
@@ skipping 128 matching lines @@
   virtual void UpdateCaretPosition(PP_Instance instance,
                                    const PP_Rect& caret,
                                    const PP_Rect& bounding_box) = 0;
   virtual void CancelCompositionText(PP_Instance instance) = 0;
   virtual void SelectionChanged(PP_Instance instance) = 0;
   virtual void UpdateSurroundingText(PP_Instance instance,
                                      const char* text,
                                      uint32_t caret,
                                      uint32_t anchor) = 0;
 
-  // Zoom.
-  virtual void ZoomChanged(PP_Instance instance, double factor) = 0;
-  virtual void ZoomLimitsChanged(PP_Instance instance,
-                                 double minimum_factor,
-                                 double maximum_factor) = 0;
   // Testing and URLUtil.
   virtual PP_Var GetDocumentURL(PP_Instance instance,
                                 PP_URLComponents_Dev* components) = 0;
 #if !defined(OS_NACL)
   // Content Decryptor.
   virtual void PromiseResolved(PP_Instance instance, uint32 promise_id) = 0;
   virtual void PromiseResolvedWithSession(PP_Instance instance,
                                           uint32 promise_id,
                                           PP_Var session_id_var) = 0;
   virtual void PromiseRejected(PP_Instance instance,
@@ skipping 55 matching lines @@
                                       PP_URLComponents_Dev* components) = 0;
 #endif  // !defined(OS_NACL)
 
   static const ApiID kApiID = API_ID_PPB_INSTANCE;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_INSTANCE_API_H_