Stop using GetDefaultProfile() in Chrome OS implementation of platform_util::OpenExternal()

chrome/browser/ui/apps/chrome_shell_window_delegate.cc

 // Copyright 2013 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/ui/apps/chrome_shell_window_delegate.h"
 
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/file_select_helper.h"
 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
@@ skipping 29 matching lines @@
 
 ShellWindowLinkDelegate::ShellWindowLinkDelegate() {}
 
 ShellWindowLinkDelegate::~ShellWindowLinkDelegate() {}
 
 // TODO(rockot): Add a test that exercises this code. See
 // http://crbug.com/254260.
 content::WebContents* ShellWindowLinkDelegate::OpenURLFromTab(
     content::WebContents* source,
     const content::OpenURLParams& params) {
-  platform_util::OpenExternal(params.url);
+  if (source) {
+    platform_util::OpenExternal(
+        Profile::FromBrowserContext(source->GetBrowserContext()), params.url);
+  }
   delete source;
   return NULL;
 }
 
 ChromeShellWindowDelegate::ChromeShellWindowDelegate() {}
 
 ChromeShellWindowDelegate::~ChromeShellWindowDelegate() {}
 
 void ChromeShellWindowDelegate::DisableExternalOpenForTesting() {
   disable_external_open_for_testing_ = true;
@@ skipping 95 matching lines @@
   if (host) {
     host->Send(new ChromeViewMsg_SetVisuallyDeemphasized(
         host->GetRoutingID(), blocked));
   }
 }
 
 bool ChromeShellWindowDelegate::IsWebContentsVisible(
     content::WebContents* web_contents) {
   return platform_util::IsVisible(web_contents->GetView()->GetNativeView());
 }