Route selection bounds updates through WebLayerTreeView

public/web/WebSelection.h

Index: public/web/WebSelection.h
diff --git a/public/platform/WebWaitableEvent.h b/public/web/WebSelection.h
similarity index 70%
copy from public/platform/WebWaitableEvent.h
copy to public/web/WebSelection.h
index f1b59f0a263afe5afd887863e98d52d9cfa3e95e..3cde6e11daa640e0bceeaf36e9f06c269d91d2e9 100644
--- a/public/platform/WebWaitableEvent.h
+++ b/public/web/WebSelection.h
@@ -28,28 +28,42 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebWaitableEvent_h
-#define WebWaitableEvent_h
+#ifndef WebSelection_h
+#define WebSelection_h
 
-#include "WebCommon.h"
+#include "../platform/WebRect.h"
+#include "WebTextDirection.h"
 
 namespace blink {
 
-// Provides a thread synchronization that can be used to allow one thread to
-// wait until another thread to finish some work.
-class WebWaitableEvent {
-public:
-    virtual ~WebWaitableEvent() { }
+struct WebSelection {
+    enum Type {
+        TypeNone,
+        TypeInsertion,
+        TypeSelection,
+    };
 
-    // Waits indefinitely for the event to be signaled.
-    virtual void wait() = 0;
+    WebSelection()
+        : type(TypeNone)
+        , anchorLayerId(0)
+        , anchorDirection(WebTextDirectionDefault)
+        , focusLayerId(0)
+        , focusDirection(WebTextDirectionDefault)
+        , anchorIsFirst(true) { }
 
-    // Puts the event in the signaled state. Causing any thread blocked on Wait
-    // to be woken up. The event state is reset to non-signaled after
-    // a waiting thread has been released.
-    virtual void signal() = 0;
+    Type type;
+
+    int anchorLayerId;
+    WebRect anchorRectInLayer;
+    WebTextDirection anchorDirection;
+
+    int focusLayerId;
+    WebRect focusRectInLayer;
+    WebTextDirection focusDirection;
+
+    bool anchorIsFirst;

[abarth-chromium, 2014/06/13 21:38:15]

I would have expected this state to hang off whichever layer has the selection
handles.

What happens if the selection spans multiple cc::Layers?

[jdduke (slow), 2014/06/20 17:15:59]

That's why each handle gets a specific (potentially different) layer assignment.

 };
 
 } // namespace blink
 
-#endif // WebWaitableEvent_h
+#endif