Remove 10.5 support, fix coordinate calls.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2012 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 2933 matching lines @@
     ui::Range replacement_range(replacementRange);
     renderWidgetHostView_->render_widget_host_->ImeConfirmComposition(
         base::SysNSStringToUTF16(im_text), replacement_range);
   }
 
   // Inserting text will delete all marked text automatically.
   hasMarkedText_ = NO;
 }
 
 - (void)insertText:(id)string {
-  // This is a method on NSTextInput, not NSTextInputClient. But on 10.5, this
-  // gets called anyway. Forward to the right method. http://crbug.com/47890
   [self insertText:string replacementRange:NSMakeRange(NSNotFound, 0)];

[Nico, 2012/08/07 16:16:58]

I think we can delete the whole method. I added it because typing would cause
bell sounds on 10.5 with every key press.

[Robert Sesek, 2012/08/07 16:18:08]

He did initially, but it was causing test failures.

 }
 
 - (void)viewDidMoveToWindow {
   if (canBeKeyView_) {
     NSWindow* newWindow = [self window];
     // Pointer comparison only, since we don't know if lastWindow_ is still
     // valid.
     if (newWindow) {
       // If we move into a new window, refresh the frame information. We
       // don't need to do it if it was the same window as it used to be in,
@@ skipping 212 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end