Browser Plugin: Only install BrowserPluginMessageFilter if render process supports BrowserPlugin.

content/shell/shell_content_browser_client.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 "content/shell/shell_content_browser_client.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/storage_partition.h"
+#include "content/public/common/content_switches.h"
 #include "content/shell/geolocation/shell_access_token_store.h"
 #include "content/shell/shell.h"
 #include "content/shell/shell_browser_context.h"
 #include "content/shell/shell_browser_main_parts.h"
 #include "content/shell/shell_devtools_delegate.h"
 #include "content/shell/shell_message_filter.h"
 #include "content/shell/shell_messages.h"
 #include "content/shell/shell_resource_dispatcher_host_delegate.h"
 #include "content/shell/shell_switches.h"
 #include "content/shell/shell_web_contents_view_delegate_creator.h"
@@ skipping 130 matching lines @@
   resource_dispatcher_host_delegate_.reset(
       new ShellResourceDispatcherHostDelegate());
   ResourceDispatcherHost::Get()->SetDelegate(
       resource_dispatcher_host_delegate_.get());
 }
 
 std::string ShellContentBrowserClient::GetDefaultDownloadName() {
   return "download";
 }
 
+bool ShellContentBrowserClient::SupportsBrowserPlugin(
+    content::BrowserContext* browser_context, const GURL& url) {
+  return CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserPluginForAllViewTypes);
+}
+
 WebContentsViewDelegate* ShellContentBrowserClient::GetWebContentsViewDelegate(
     WebContents* web_contents) {
 #if !defined(USE_AURA)
   return CreateShellWebContentsViewDelegate(web_contents);
 #else
   return NULL;
 #endif
 }
 
 #if defined(OS_ANDROID)
@@ skipping 36 matching lines @@
 ShellBrowserContext*
 ShellContentBrowserClient::ShellBrowserContextForBrowserContext(
     BrowserContext* content_browser_context) {
   if (content_browser_context == browser_context())
     return browser_context();
   DCHECK_EQ(content_browser_context, off_the_record_browser_context());
   return off_the_record_browser_context();
 }
 
 }  // namespace content