Propagate focus type to plugins

public/platform/WebFocusType.h

Index: public/platform/WebFocusType.h
diff --git a/public/platform/WebImageGenerator.h b/public/platform/WebFocusType.h
similarity index 75%
copy from public/platform/WebImageGenerator.h
copy to public/platform/WebFocusType.h
index bb17f4d6df96a2dcc73efa069d2c6646a2338ab9..2c66b94b0c5e9c91269a8dc164eb8c28d14c152f 100644
--- a/public/platform/WebImageGenerator.h
+++ b/public/platform/WebFocusType.h
@@ -28,21 +28,30 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebImageGenerator_h
-#define WebImageGenerator_h
-
-#include "WebCommon.h"
-
-class SkData;
-class SkImageGenerator;
+#ifndef WebFocusType_h
+#define WebFocusType_h
 
 namespace blink {
 
-class BLINK_EXPORT WebImageGenerator {
-public:
-    static SkImageGenerator* create(SkData*);
+enum WebFocusType {
+    // Element::focus(), etc.
+    WebFocusTypeNone = 0,
+    // Sequential navigation with TAB, or Shift + TAB.
+    WebFocusTypeForward,
+    WebFocusTypeBackward,
+    // Spatial navigation.
+    WebFocusTypeUp,
+    WebFocusTypeDown,
+    WebFocusTypeLeft,
+    WebFocusTypeRight,
+    // Mouse press
+    WebFocusTypeMouse,
+    // Re-focus by a page focus
+    WebFocusTypePage,
+
+    WebFocusTypeLast = WebFocusTypePage
 };
 
-} // namespace blink
+}
 
-#endif
+#endif // WebFocusType_h