Add PluginServiceFilter interface.

content/browser/mock_content_browser_client.cc

Index: content/browser/mock_content_browser_client.cc
diff --git a/content/browser/mock_content_browser_client.cc b/content/browser/mock_content_browser_client.cc
index 1c68a244765a4b58c22519cd8236587c0ed07269..60faac8ae8ca83f10ae4cecb8c8554d0a389bf32 100644
--- a/content/browser/mock_content_browser_client.cc
+++ b/content/browser/mock_content_browser_client.cc
@@ -6,12 +6,26 @@
 
 #include <string>
 
+#include "content/browser/plugin_filter.h"
 #include "content/browser/webui/empty_web_ui_factory.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "webkit/glue/webpreferences.h"
 
+namespace {
+
+class DummyPluginFilter : public content::PluginFilter {
+ public:
+  DummyPluginFilter() {}
+
+  virtual bool ShouldUsePlugin(webkit::npapi::WebPluginInfo* plugin) OVERRIDE {
+    return true;
+  }
+};
+
+}  // namespace
+
 namespace content {
 
 MockContentBrowserClient::~MockContentBrowserClient() {
@@ -100,6 +114,15 @@ bool MockContentBrowserClient::AllowSaveLocalState(
   return true;
 }
 
+content::PluginFilter* MockContentBrowserClient::CreatePluginFilter(
+    int render_process_id,
+    int render_view_id,
+    const content::ResourceContext& context,
+    const GURL& url,
+    const GURL& policy_url) {
+  return new DummyPluginFilter();
+}
+
 QuotaPermissionContext*
     MockContentBrowserClient::CreateQuotaPermissionContext() {
   return NULL;