Delete some unused code found by -Wunused-function

ppapi/thunk/ppb_view_thunk.cc

 // 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.
 
 #include "ppapi/c/dev/ppb_view_dev.h"
 #include "ppapi/c/ppb_view.h"
 #include "ppapi/shared_impl/ppb_view_shared.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_view_api.h"
 #include "ppapi/thunk/thunk.h"
 
 namespace ppapi {
 namespace thunk {
 
 namespace {
 
 typedef EnterResource<PPB_View_API> EnterView;
 
 bool IsRectVisible(const PP_Rect& rect) {
   return rect.size.width > 0 && rect.size.height > 0;
 }
 
 PP_Bool IsView(PP_Resource resource) {
   EnterView enter(resource, false);
   return enter.succeeded() ? PP_TRUE : PP_FALSE;
 }
 
-PP_Bool GetSize(PP_Resource resource, PP_Size* size) {
-  EnterView enter(resource, true);
-  if (enter.failed() || !size)
-    return PP_FALSE;
-  *size = enter.object()->GetData().rect.size;
-  return PP_TRUE;
-}
-
 PP_Bool GetRect(PP_Resource resource, PP_Rect* viewport) {
   EnterView enter(resource, true);
   if (enter.failed() || !viewport)
     return PP_FALSE;
   *viewport = enter.object()->GetData().rect;
   return PP_TRUE;
 }
 
 PP_Bool IsFullscreen(PP_Resource resource) {
   EnterView enter(resource, true);
@@ skipping 10 matching lines @@
                      IsRectVisible(enter.object()->GetData().clip_rect));
 }
 
 PP_Bool IsPageVisible(PP_Resource resource) {
   EnterView enter(resource, true);
   if (enter.failed())
     return PP_FALSE;
   return PP_FromBool(enter.object()->GetData().is_page_visible);
 }
 
-PP_Bool IsClipVisible(PP_Resource resource) {
-  EnterView enter(resource, true);
-  if (enter.failed())
-    return PP_FALSE;
-  return PP_FromBool(IsRectVisible(enter.object()->GetData().clip_rect));
-}
-
 PP_Bool GetClipRect(PP_Resource resource, PP_Rect* clip) {
   EnterView enter(resource, true);
   if (enter.failed() || !clip)
     return PP_FALSE;
   *clip = enter.object()->GetData().clip_rect;
   return PP_TRUE;
 }
 
 float GetDeviceScale(PP_Resource resource) {
   EnterView enter(resource, true);
@@ skipping 28 matching lines @@
 const PPB_View* GetPPB_View_1_0_Thunk() {
   return &g_ppb_view_thunk;
 }
 
 const PPB_View_Dev* GetPPB_View_Dev_0_1_Thunk() {
   return &g_ppb_view_dev_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi