Implementing directional selection strategy in Blink.

public/web/WebLocalFrame.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 WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include "WebFrame.h"
 
 namespace blink {
@@ skipping 102 matching lines @@
     // Associates an isolated world with human-readable name which is useful for
     // extension debugging.
     virtual void setIsolatedWorldHumanReadableName(int worldID, const WebString&) = 0;
 
 
     // Selection --------------------------------------------------------------
 
     // Moves the selection extent point. This function does not allow the
     // selection to collapse. If the new extent is set to the same position as
     // the current base, this function will do nothing.
-    virtual void moveRangeSelectionExtent(const WebPoint&, TextGranularity = CharacterGranularity) = 0;

[Rick Byers, 2015/04/16 19:09:48]

Are there already no callers in chromium that supply this?  Obviously we can't
land this blink API change until no-one is depending on it.

[mfomitchev1, 2015/04/16 19:33:00]

Nope. This parameter was just added by yoichio recently per my request when we
were still trying to implement the strategy in chrome. I have a patch that
plumbs through the IPC for it, but it never landed. So
InputMsg_MoveRangeSelectionExtent only takes one parameter.

[Rick Byers, 2015/04/16 19:35:10]

Acknowledged.

+    virtual void moveRangeSelectionExtent(const WebPoint&) = 0;
 
     // Content Settings -------------------------------------------------------
 
     virtual void setContentSettingsClient(WebContentSettingsClient*) = 0;
 
     // App banner -------------------------------------------------------------
 
     // Request to show an application install banner for the given |platform|.
     // The implementation can request the embedder to cancel the call by setting
     // |cancel| to true.
     virtual void willShowInstallBannerPrompt(const WebString& platform, WebAppBannerPromptReply*) = 0;
 };
 
 } // namespace blink
 
 #endif // WebLocalFrame_h