[autofill] Show autofill suggestions on tap gesture.

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..4f0890e6e41ae04a8d4cbc90d1aae5f80a2d36cb 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;
@@ -74,20 +76,33 @@ PageClickTracker::~PageClickTracker() {
   // be invalid.
 }
 
-void PageClickTracker::DidHandleMouseEvent(const WebMouseEvent& event) {
-  if (event.type != WebInputEvent::MouseDown ||
-      last_node_clicked_.isNull()) {
+void PageClickTracker::DidHandleMouseOrGestureEvent(
+    const WebInputEvent& event,
+    WebInputEvent::Type expected_type,
+    autofill::InputEventSource source) {

[Ilya Sherman, 2013/06/06 20:35:08]

nit: No need for the "autofill::" prefix, as this code is already in the
autofill namespace.

+  if (event.type != expected_type || last_node_clicked_.isNull()) {
     return;
   }

[Ilya Sherman, 2013/06/06 20:35:08]

nit: No need for curlies

 
-  // We are only interested in text field clicks.
+  // We are only interested in text field clicks and taps.
   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);
+  listener_->InputElementClicked(input_element,
+                                 was_focused_,
+                                 is_focused,
+                                 source);
+}
+
+void PageClickTracker::DidHandleMouseEvent(const WebMouseEvent& event) {
+  DidHandleMouseOrGestureEvent(event, WebInputEvent::MouseDown, MOUSE_CLICK);
+}
+
+void PageClickTracker::DidHandleGestureEvent(const WebGestureEvent& event) {
+  DidHandleMouseOrGestureEvent(event, WebInputEvent::GestureTap, TAP_GESTURE);
 }
 
 void PageClickTracker::DidFinishDocumentLoad(WebKit::WebFrame* frame) {