Implement touch selection for RWHVV.

content/renderer/render_view.h

Index: content/renderer/render_view.h
diff --git a/content/renderer/render_view.h b/content/renderer/render_view.h
index 0db56159c59f059d08cb67a305904d0e979d55b0..a3a572272d06213aa9e73589d63743f909cf419f 100644
--- a/content/renderer/render_view.h
+++ b/content/renderer/render_view.h
@@ -819,6 +819,7 @@ class RenderView : public RenderWidget,
                            int id,
                            bool notify_result);
   void OnSelectAll();
+  void OnSelectRange(const gfx::Point& start, const gfx::Point& end);
   void OnSetAccessibilityFocus(int acc_obj_id);
   void OnSetActive(bool active);
   void OnSetAltErrorPageURL(const GURL& gurl);
@@ -1197,6 +1198,14 @@ class RenderView : public RenderWidget,
   // is fine.
   ObserverList<RenderViewObserver> observers_;
 
+  // Set if we received a ViewMsg_SelectRange from the browser and are waiting

[darin (slow to review), 2011/08/05 03:51:16]

nit: this comment can be a bit more brief:

 // Used to inform didChangeSelection() when it is called in the context
 // of handling a ViewMsg_SelectRange IPC.

[varunjain, 2011/08/05 15:57:30]

Done.

+  // for WebKit to update the selection and call us back through
+  // didChangeSelection().
+  // This is used by didChangeSelection() to determine if the selection change
+  // has happened due to an input event or due to ViewMsg_SelectRange message
+  // from the browser.
+  bool handling_select_rect_;

[darin (slow to review), 2011/08/05 03:51:16]

nit: handling_select_range_

[varunjain, 2011/08/05 15:57:30]

Done.

+
   // ---------------------------------------------------------------------------
   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
   // sections rather than throwing it randomly at the end. If you're adding a