[content shell] add support for running headless on mac

content/shell/shell_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/shell/shell.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #import "base/memory/scoped_nsobject.h"
@@ skipping 112 matching lines @@
 
 namespace content {
 
 void Shell::PlatformInitialize(const gfx::Size& default_window_size) {
 }
 
 void Shell::PlatformCleanUp() {
 }
 
 void Shell::PlatformEnableUIControl(UIControl control, bool is_enabled) {
+  if (headless_)
+    return;
+
   int id;
   switch (control) {
     case BACK_BUTTON:
       id = IDC_NAV_BACK;
       break;
     case FORWARD_BUTTON:
       id = IDC_NAV_FORWARD;
       break;
     case STOP_BUTTON:
       id = IDC_NAV_STOP;
       break;
     default:
       NOTREACHED() << "Unknown UI control";
       return;
   }
   [[[window_ contentView] viewWithTag:id] setEnabled:is_enabled];
 }
 
 void Shell::PlatformSetAddressBarURL(const GURL& url) {
+  if (headless_)
+    return;
+
   NSString* url_string = base::SysUTF8ToNSString(url.spec());
   [url_edit_view_ setStringValue:url_string];
 }
 
 void Shell::PlatformSetIsLoading(bool loading) {
 }
 
 void Shell::PlatformCreateWindow(int width, int height) {
+  if (headless_)
+    return;
+
   NSRect initial_window_bounds =
       NSMakeRect(0, 0, width, height + kURLBarHeight);
   NSRect content_rect = initial_window_bounds;
   NSUInteger style_mask = NSTitledWindowMask |
                           NSClosableWindowMask |
                           NSMiniaturizableWindowMask |
                           NSResizableWindowMask;
   CrShellWindow* window =
       [[CrShellWindow alloc] initWithContentRect:content_rect
                                        styleMask:style_mask
@@ skipping 52 matching lines @@
   [[url_edit_view cell] setWraps:NO];
   [[url_edit_view cell] setScrollable:YES];
   url_edit_view_ = url_edit_view.get();
 
   // show the window
   [window_ makeKeyAndOrderFront:nil];
 }
 
 void Shell::PlatformSetContents() {
   NSView* web_view = web_contents_->GetView()->GetNativeView();
+
+  if (headless_) {
+    NSRect frame = NSMakeRect(
+        0, 0, kDefaultTestWindowWidthDip, kDefaultTestWindowHeightDip);
+    [web_view setFrame:frame];
+    [web_view setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
+    return;
+  }
+
   NSView* content = [window_ contentView];
   [content addSubview:web_view];
 
   NSRect frame = [content bounds];
   frame.size.height -= kURLBarHeight;
   [web_view setFrame:frame];
   [web_view setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
   [web_view setNeedsDisplay:YES];
 }
 
 void Shell::PlatformResizeSubViews() {
   // Not needed; subviews are bound.
 }
 
 void Shell::PlatformSetTitle(const string16& title) {
+  if (headless_)
+    return;
+
   NSString* title_string = base::SysUTF16ToNSString(title);
   [window_ setTitle:title_string];
 }
 
 void Shell::Close() {
-  [window_ performClose:nil];
+  if (headless_)
+    delete this;
+  else
+    [window_ performClose:nil];
 }
 
 void Shell::ActionPerformed(int control) {
   switch (control) {
     case IDC_NAV_BACK:
       GoBackOrForward(-1);
       break;
     case IDC_NAV_FORWARD:
       GoBackOrForward(1);
       break;
@@ skipping 27 matching lines @@
         [[event.os_event characters] isEqual:@"l"]) {
       [window_ makeFirstResponder:url_edit_view_];
       return;
     }
 
     [[NSApp mainMenu] performKeyEquivalent:event.os_event];
   }
 }
 
 }  // namespace content