[Mac] Make the pageup, Shift-pageup, and Option-Shift-pageup keys scroll the ...

chrome/browser/cocoa/find_bar_cocoa_controller.mm

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 
 #include "app/l10n_util.h"
 #include "base/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "grit/generated_resources.h"
@@ skipping 95 matching lines @@
   if (command == @selector(insertNewline:)) {
     NSEvent* event = [NSApp currentEvent];
 
     if ([event modifierFlags] & NSShiftKeyMask)
       [previousButton_ performClick:nil];
     else {
       [nextButton_ performClick:nil];
     }
 
     return YES;
+  } else if (command == @selector(pageUp:) ||
+             command == @selector(pageUpAndModifySelection:) ||
+             command == @selector(scrollPageUp:) ||
+             command == @selector(pageDown:) ||
+             command == @selector(pageDownAndModifySelection:) ||
+             command == @selector(scrollPageDown:)) {
+    TabContents* contents =
+        findBarBridge_->GetFindBarController()->tab_contents();
+    if (!contents)
+      return NO;
+
+    // Sanity-check to make sure we got a keyboard event.
+    NSEvent* event = [NSApp currentEvent];
+    if ([event type] != NSKeyDown && [event type] != NSKeyUp)
+      return NO;
+
+    // Forward the event to the renderer.
+    // TODO(rohitrao): Should this call -[BaseView keyEvent:]?  Is there code in
+    // that function that we want to keep or avoid?
+    RenderViewHost* render_view_host = contents->render_view_host();
+    render_view_host->ForwardKeyboardEvent(NativeWebKeyboardEvent(event));
+    return YES;
   }
 
   return NO;
 }
 
 // Methods from FindBar
 - (void)showFindBar {
   [[self view] setHidden:NO];
 
   // Save the currently-focused view.  |[self view]| is in the view
@@ skipping 85 matching lines @@
 
   // TODO(rohitrao): If the search string is too long, then it will overlap with
   // the results label.  Fix.
 }
 
 - (BOOL)isFindBarVisible {
   return [[self view] isHidden] ? NO : YES;
 }
 
 @end