Expose the selection root bounds in WebView.

public/web/WebWidget.h

Index: public/web/WebWidget.h
diff --git a/public/web/WebWidget.h b/public/web/WebWidget.h
index 10ad2912191bb0750c0e60ee673b856d11d07c1b..281b721858ac225fc14513221f7807e6bcfd4856 100644
--- a/public/web/WebWidget.h
+++ b/public/web/WebWidget.h
@@ -194,6 +194,12 @@ public:
     // If the selection range is empty, it returns the caret bounds.
     virtual bool selectionBounds(WebRect& anchor, WebRect& focus) const { return false; }
 
+    // Compute the bounds of the root element of the current selection and fills
+    // the out-parameter on success. |bounds| coordinate will be relative to the

[timvolodine, 2014/03/05 19:41:02]

coordinate -> coordinates

[mlamouri (slow - plz ping), 2014/03/06 13:45:31]

Done.

+    // contents window and will take into account the current scale level.
+    // Returns false if there is no selection or on failure.

[timvolodine, 2014/03/05 19:41:02]

what does failure mean here? instead maybe better to say something like: "when
there is no underlying editable element"?

[mlamouri (slow - plz ping), 2014/03/06 13:45:31]

You can have a selection even though there is no editable element. I removed
"failure" and just kept "no selection".

+    virtual bool selectionRootBounds(WebRect& bounds) const { return false; }
+
     // Called to notify that IME candidate window has changed its visibility or
     // its appearance. These calls correspond to trigger
     // candidatewindow{show,update,hide} events defined in W3C IME API.