[autofill] Add support for PSL domain matching for password autofill.

components/autofill/renderer/page_click_tracker.cc

Index: components/autofill/renderer/page_click_tracker.cc
diff --git a/components/autofill/renderer/page_click_tracker.cc b/components/autofill/renderer/page_click_tracker.cc
index f1aae33733e1ec594e68507210cee9cdfbc5706b..812def163bd909b51c0dc68603169e94d994181e 100644
--- a/components/autofill/renderer/page_click_tracker.cc
+++ b/components/autofill/renderer/page_click_tracker.cc
@@ -20,9 +20,11 @@ using WebKit::WebDOMMouseEvent;
 using WebKit::WebElement;
 using WebKit::WebFormControlElement;
 using WebKit::WebFrame;
+using WebKit::WebGestureEvent;
 using WebKit::WebInputElement;
 using WebKit::WebInputEvent;
 using WebKit::WebMouseEvent;
+using WebKit::WebTouchEvent;
 using WebKit::WebNode;
 using WebKit::WebString;
 using WebKit::WebView;
@@ -87,7 +89,31 @@ void PageClickTracker::DidHandleMouseEvent(const WebMouseEvent& event) {
     return;
 
   bool is_focused = (last_node_clicked_ == render_view()->GetFocusedNode());
-  listener_->InputElementClicked(input_element, was_focused_, is_focused);
+  listener_->InputElementClicked(input_element,
+                                 was_focused_,
+                                 is_focused,
+                                 MOUSE_CLICK);
+}
+
+void PageClickTracker::DidHandleGestureEvent(
+    const WebKit::WebGestureEvent& event) {
+  if (event.type != WebInputEvent::GestureTap)
+    return;
+
+  if (last_node_clicked_.isNull())
+    return;
+
+  // We are only interested in text field clicks.
+  const WebInputElement input_element =
+      GetTextWebInputElement(last_node_clicked_);
+  if (input_element.isNull())
+    return;
+
+  bool is_focused = (last_node_clicked_ == render_view()->GetFocusedNode());
+  listener_->InputElementClicked(input_element,
+                                 was_focused_,
+                                 is_focused,
+                                 TAP_GESTURE);
 }
 
 void PageClickTracker::DidFinishDocumentLoad(WebKit::WebFrame* frame) {