Remove unused in-process pepper APIs

ppapi/api/dev/ppb_zoom_dev.idl

Index: ppapi/api/dev/ppb_zoom_dev.idl
diff --git a/ppapi/api/dev/ppb_zoom_dev.idl b/ppapi/api/dev/ppb_zoom_dev.idl
deleted file mode 100644
index 8e03bd06d01e0493a71355294a893b754f44fdef..0000000000000000000000000000000000000000
--- a/ppapi/api/dev/ppb_zoom_dev.idl
+++ /dev/null
@@ -1,36 +0,0 @@
-/* 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.
- */
-
-/**
- * Implementation of the Zoom interface.
- */
-
-[generate_thunk]
-
-label Chrome {
-  M14 = 0.2
-};
-
-/**
- * Zoom interface should only apply to those full-page "plugin-document".
- */
-interface PPB_Zoom_Dev {
-  /**
-   * Informs the browser about the new zoom factor for the plugin (see
-   * ppp_zoom_dev.h for a description of zoom factor). The plugin should only
-   * call this function if the zoom change was triggered by the browser, it's
-   * only needed in case a plugin can update its own zoom, say because of its
-   * own UI.
-   */
-  void ZoomChanged([in] PP_Instance instance,
-                   [in] double_t factor);
-  /**
-   * Sets the minimum and maximum zoom factors.
-   */
-  void ZoomLimitsChanged([in] PP_Instance instance,
-                         [in] double_t minimum_factor,
-                         [in] double_t maximum_factor);
-};
-