[rAC, OSX] Autofill popup should be shown on 2nd click.

chrome/browser/ui/cocoa/autofill/autofill_textfield.mm

Index: chrome/browser/ui/cocoa/autofill/autofill_textfield.mm
diff --git a/chrome/browser/ui/cocoa/autofill/autofill_textfield.mm b/chrome/browser/ui/cocoa/autofill/autofill_textfield.mm
index 0d855ca863abbcce1e2141dd67d24f2346e29aa1..6ee5aa9eb8cb5beb63ef45a0885cdb588715d419 100644
--- a/chrome/browser/ui/cocoa/autofill/autofill_textfield.mm
+++ b/chrome/browser/ui/cocoa/autofill/autofill_textfield.mm
@@ -40,11 +40,30 @@ const CGFloat kMinimumHeight = 27.0;  // Enforced minimum height for text cells.
 
 - (BOOL)becomeFirstResponder {
   BOOL result = [super becomeFirstResponder];
-  if (result && delegate_)
+  if (result && delegate_) {
     [delegate_ fieldBecameFirstResponder:self];
+    shouldFilterClick_ = YES;
+  }
   return result;
 }
 
+- (void)onEditorMouseDown:(id)sender {
+  // Since the dialog does not care about clicks that gave firstResponder
+  // status, swallow those.
+  if (!handlingFirstClick_)
+    [delegate_ onMouseDown: self];
+}
+
+- (void)mouseDown:(NSEvent*)theEvent {
+  // mouseDown: is only invoked for a click that actually gave firstResponder
+  // status to the NSTextField, and clicks to the border area. Further clicks
+  // into the content are are handled by the field editor instead.
+  handlingFirstClick_ = shouldFilterClick_;
+  [super mouseDown:theEvent];
+  handlingFirstClick_ = NO;
+  shouldFilterClick_ = NO;
+}
+
 - (void)controlTextDidEndEditing:(NSNotification*)notification {
   if (delegate_)
     [delegate_ didEndEditing:self];
@@ -90,6 +109,7 @@ const CGFloat kMinimumHeight = 27.0;  // Enforced minimum height for text cells.
 
 @end
 
+
 @implementation AutofillTextFieldCell
 
 @synthesize invalid = invalid_;