WebFrame::selectRange and moveCaret should behave like mouse selection

Source/WebKit/chromium/public/WebFrame.h

Index: Source/WebKit/chromium/public/WebFrame.h
diff --git a/Source/WebKit/chromium/public/WebFrame.h b/Source/WebKit/chromium/public/WebFrame.h
index 948419fd51cf0b1705d6fc07e1c896d03538b40b..2bb8bba707f462803932677ce3bce746935982a8 100644
--- a/Source/WebKit/chromium/public/WebFrame.h
+++ b/Source/WebKit/chromium/public/WebFrame.h
@@ -454,13 +454,16 @@ public:
     // there is ranged selection.
     virtual bool selectWordAroundCaret() = 0;
 
-    // Select a range of text, as if by drag-selecting from base to extent
-    // with character granularity.
+    // DEPRECATED: Use moveRangeSelection/moveCaretSelection.
     virtual void selectRange(const WebPoint& base, const WebPoint& extent) = 0;
+    virtual void moveCaretSelectionTowardsWindowPoint(const WebPoint&) = 0;
 
     virtual void selectRange(const WebRange&) = 0;
 
-    virtual void moveCaretSelectionTowardsWindowPoint(const WebPoint&) = 0;
+    // Move the current selection. If the current selection is editable, the
+    // new selection will be restricted to the root editable element.
+    virtual void moveRangeSelection(const WebPoint& base, const WebPoint& extent) = 0;
+    virtual void moveCaretSelection(const WebPoint&) = 0;
 
     // Printing ------------------------------------------------------------