Use IsRenderViewLive() to test for SadTab in ZoomController.

chrome/browser/ui/zoom/zoom_controller_unittest.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 "base/message_loop/message_loop.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/browser/ui/zoom/zoom_observer.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/common/frame_navigate_params.h"
+#include "content/public/test/test_renderer_host.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 bool operator==(const ZoomController::ZoomChangedEventData& lhs,
                 const ZoomController::ZoomChangedEventData& rhs) {
   return lhs.web_contents == rhs.web_contents &&
          lhs.old_zoom_level == rhs.old_zoom_level &&
          lhs.new_zoom_level == rhs.new_zoom_level &&
          lhs.zoom_mode == rhs.zoom_mode &&
          lhs.can_show_bubble == rhs.can_show_bubble;
 }
 
 class TestZoomObserver : public ZoomObserver {
  public:
   MOCK_METHOD1(OnZoomChanged,
                void(const ZoomController::ZoomChangedEventData&));
 };
 
 class ZoomControllerTest : public ChromeRenderViewHostTestHarness {
  public:
   virtual void SetUp() OVERRIDE {
     ChromeRenderViewHostTestHarness::SetUp();
     zoom_controller_.reset(new ZoomController(web_contents()));
     zoom_controller_->AddObserver(&zoom_observer_);
+
+    // This call is needed so that the RenderViewHost reports being alive. This
+    // is only important for tests that call ZoomController::SetZoomLevel().
+    content::RenderViewHostTester::For(rvh())->CreateRenderView(
+        base::string16(), MSG_ROUTING_NONE, MSG_ROUTING_NONE, -1, false);
   }
 
   virtual void TearDown() OVERRIDE {
     zoom_controller_->RemoveObserver(&zoom_observer_);
     zoom_controller_.reset();
     ChromeRenderViewHostTestHarness::TearDown();
   }
 
  protected:
   scoped_ptr<ZoomController> zoom_controller_;
@@ skipping 49 matching lines @@
   ZoomController::ZoomChangedEventData zoom_change_data2(
       web_contents(),
       old_zoom_level,
       new_zoom_level,
       ZoomController::ZOOM_MODE_ISOLATED,
       false /* can_show_bubble */);
   EXPECT_CALL(zoom_observer_, OnZoomChanged(zoom_change_data2)).Times(1);
 
   zoom_controller_->SetZoomLevel(new_zoom_level);
 }