Update IDL to 1847

core/inspector/InspectorFrontendHost.idl

 /*
  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
@@ skipping 15 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 [
     NoInterfaceObject
 ] interface InspectorFrontendHost {
+    // FIXME: setZoomFactor is here only for old frontends. Remove in M38.
     void setZoomFactor(float zoom);
+    float zoomFactor();
     void inspectedURLChanged(DOMString newURL);
 
     void setInjectedScriptForOrigin(DOMString origin, DOMString script);
 
     void copyText(DOMString text);
 
     [Custom] DOMString platform();
     [Custom] DOMString port();
     [Custom] void showContextMenu(MouseEvent event, any items);
     void sendMessageToBackend(DOMString message);
     void sendMessageToEmbedder(DOMString message);
 
     [Custom] void recordActionTaken(unsigned long actionCode);
     [Custom] void recordPanelShown(unsigned long panelCode);
     [Custom] void recordSettingChanged(unsigned long settingChanged);
 
     DOMString getSelectionBackgroundColor();
     DOMString getSelectionForegroundColor();
 
-    DOMFileSystem isolatedFileSystem(DOMString fileSystemId, DOMString registeredName);
-    void upgradeDraggedFileSystemPermissions(DOMFileSystem domFileSystem);
-
     boolean isUnderTest();
 };