[Mac] Base implementation of extension infobars on the mac....

chrome/browser/cocoa/extension_view_mac.mm

 // Copyright (c) 2010 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 "chrome/browser/cocoa/extension_view_mac.h"
 
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 
@@ skipping 45 matching lines @@
 
   // No need to use CA here, our caller calls us repeatedly to animate the
   // resizing.
   NSView* view = native_view();
   NSRect frame = [view frame];
   frame.size.width = new_size.width();
   frame.size.height = new_size.height();
 
   // On first display of some extensions, this function is called with zero
   // width after the correct size has been set. Bail if zero is seen, assuming
-  // that an extension popup view doesn't want any dimensions to ever be zero.
+  // that an extension's view doesn't want any dimensions to ever be zero.
   // TODO(andybons): Verify this assumption and look into WebCore's
   // |contentesPreferredWidth| to see why this is occurring.
   if (NSIsEmptyRect(frame))
     return;
 
   DCHECK([view isKindOfClass:[RenderWidgetHostViewCocoa class]]);
   RenderWidgetHostViewCocoa* hostView = (RenderWidgetHostViewCocoa*)view;
 
   // RenderWidgetHostViewCocoa overrides setFrame but not setFrameSize.
   // We need to defer the update back to the RenderWidgetHost so we don't
-  // get the flickering effect on 10.5 of http://crbug.com/31970.
+  // get the flickering effect on 10.5 of http://crbug.com/31970
   [hostView setFrameWithDeferredUpdate:frame];
   [hostView setNeedsDisplay:YES];
 }
 
 void ExtensionViewMac::RenderViewCreated() {
   // Do not allow webkit to draw scroll bars on views smaller than
   // the largest size view allowed.  The view will be resized to make
   // scroll bars unnecessary.  Scroll bars change the height of the
   // view, so not drawing them is necessary to avoid infinite resizing.
   gfx::Size largest_popup_size(
@@ skipping 15 matching lines @@
   DCHECK(!render_widget_host_view_);
   render_widget_host_view_ = new RenderWidgetHostViewMac(render_view_host());
 
   // The RenderWidgetHostViewMac is owned by its native view, which is created
   // in an autoreleased state. retain it, so that it doesn't immediately
   // disappear.
   [render_widget_host_view_->native_view() retain];
 
   extension_host_->CreateRenderViewSoon(render_widget_host_view_);
 }