Revert 34998, more stabbing in the dark to find a perf regression - Mac: impl...

chrome/browser/cocoa/autocomplete_text_field.mm

Index: chrome/browser/cocoa/autocomplete_text_field.mm
===================================================================
--- chrome/browser/cocoa/autocomplete_text_field.mm	(revision 35037)
+++ chrome/browser/cocoa/autocomplete_text_field.mm	(working copy)
@@ -6,9 +6,6 @@
 
 #include "base/logging.h"
 #import "chrome/browser/cocoa/autocomplete_text_field_cell.h"
-#import "chrome/browser/cocoa/browser_window_controller.h"
-#import "chrome/browser/cocoa/toolbar_controller.h"
-#import "chrome/browser/cocoa/url_drop_target.h"
 
 @implementation AutocompleteTextField
 
@@ -25,7 +22,6 @@
 
 - (void)awakeFromNib {
   DCHECK([[self cell] isKindOfClass:[AutocompleteTextFieldCell class]]);
-  dropHandler_.reset([[URLDropTargetHandler alloc] initWithView:self]);
 }
 
 - (void)flagsChanged:(NSEvent*)theEvent {
@@ -256,36 +252,4 @@
   }
 }
 
-// (URLDropTarget protocol)
-- (id<URLDropTargetController>)urlDropController {
-  BrowserWindowController* windowController = [[self window] windowController];
-  DCHECK([windowController isKindOfClass:[BrowserWindowController class]]);
-  return [windowController toolbarController];
-}
-
-// (URLDropTarget protocol)
-- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
-  // Make ourself the first responder, which will select the text to indicate
-  // that our contents would be replaced by a drop.
-  // TODO(viettrungluu): crbug.com/30809 -- this is a hack since it steals focus
-  // and doesn't return it.
-  [[self window] makeFirstResponder:self];
-  return [dropHandler_ draggingEntered:sender];
-}
-
-// (URLDropTarget protocol)
-- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ draggingUpdated:sender];
-}
-
-// (URLDropTarget protocol)
-- (void)draggingExited:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ draggingExited:sender];
-}
-
-// (URLDropTarget protocol)
-- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ performDragOperation:sender];
-}
-
 @end