Add hooks to content to request permission to connect to the PPAPI broker.

chrome/browser/ui/browser.cc

 // 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 "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 937 matching lines @@
 
     InfoBarDelegate* infobar =
         new MediaStreamInfoBarDelegate(infobar_helper, controller.release());
     if (old_infobar)
       infobar_helper->ReplaceInfoBar(old_infobar, infobar);
     else
       infobar_helper->AddInfoBar(infobar);
   }
 }
 
+// static
+void Browser::RequestPpapiBrokerPermissionHelper(
+    WebContents* web_contents,
+    const GURL& url,
+    const FilePath& plugin_path,
+    const base::Callback<void(bool)>& callback) {
+  // TODO(bauerb): Request permission.

[ddorwin, 2012/08/12 22:51:16]

FYI, should automatically return false in certain cases. This is briefly
mentioned in the bug.

[Bernhard Bauer, 2012/08/13 09:02:11]

Do you know what these cases are? FYI, the actual infobar is in
http://codereview.chromium.org/10826164/ and returns false in the following
cases:
* WebContentsDelegate is NULL
* WebContentsDelegate is not a Browser or ExternalTabContainer
* WebContents is not associated with a TabContents. 

[ddorwin, 2012/08/13 22:27:04]

As discussed offline.

+  callback.Run(true);
+}
+
 void Browser::UpdateUIForNavigationInTab(TabContents* contents,
                                          content::PageTransition transition,
                                          bool user_initiated) {
   tab_strip_model_->TabNavigating(contents, transition);
 
   bool contents_is_selected = contents == chrome::GetActiveTabContents(this);
   if (user_initiated && contents_is_selected && window()->GetLocationBar()) {
     // Forcibly reset the location bar if the url is going to change in the
     // current tab, since otherwise it won't discard any ongoing user edits,
     // since it doesn't realize this is a user-initiated action.
@@ skipping 708 matching lines @@
   fullscreen_controller_->LostMouseLock();
 }
 
 void Browser::RequestMediaAccessPermission(
     content::WebContents* web_contents,
     const content::MediaStreamRequest* request,
     const content::MediaResponseCallback& callback) {
   RequestMediaAccessPermissionHelper(web_contents, request, callback);
 }
 
+void Browser::RequestPpapiBrokerPermission(
+    WebContents* web_contents,
+    const GURL& url,
+    const FilePath& plugin_path,
+    const base::Callback<void(bool)>& callback) {
+  RequestPpapiBrokerPermissionHelper(web_contents, url, plugin_path,
+                                     callback);
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, CoreTabHelperDelegate implementation:
 
 void Browser::SwapTabContents(TabContents* old_tab_contents,
                               TabContents* new_tab_contents) {
   int index = tab_strip_model_->GetIndexOfTabContents(old_tab_contents);
   DCHECK_NE(TabStripModel::kNoTab, index);
   tab_strip_model_->ReplaceTabContentsAt(index, new_tab_contents);
 }
 
@@ skipping 599 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }