Allow MessageFilters to restrict listening to specific message classes

chrome/renderer/safe_browsing/phishing_classifier_delegate_browsertest.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/renderer/safe_browsing/phishing_classifier_delegate.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 64 matching lines @@
 
   MOCK_CONST_METHOD1(ComputeScore, double(const FeatureMap&));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockScorer);
 };
 
 class InterceptingMessageFilter : public content::BrowserMessageFilter {
  public:
   InterceptingMessageFilter()
-      : waiting_message_loop_(NULL) {
+      : BrowserMessageFilter(SafeBrowsingMsgStart),
+        waiting_message_loop_(NULL) {
   }
 
   const ClientPhishingRequest* verdict() const { return verdict_.get(); }
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE {
     bool handled = true;
     IPC_BEGIN_MESSAGE_MAP(InterceptingMessageFilter, message)
         IPC_MESSAGE_HANDLER(SafeBrowsingHostMsg_PhishingDetectionDone,
                             OnPhishingDetectionDone)
         IPC_MESSAGE_UNHANDLED(handled = false);
@@ skipping 529 matching lines @@
   RunClassificationDone(verdict);
   ASSERT_TRUE(intercepting_filter_->verdict());
   EXPECT_EQ(verdict.SerializeAsString(),
             intercepting_filter_->verdict()->SerializeAsString());
 
   // The delegate will cancel pending classification on destruction.
   EXPECT_CALL(*classifier_, CancelPendingClassification());
 }
 
 }  // namespace safe_browsing