Add setting to isolate zoom changes by default.

chrome/browser/ui/tabs/tab_strip_model_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 "chrome/browser/ui/tabs/tab_strip_model.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
@@ skipping 20 matching lines @@
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/test/web_contents_tester.h"
 #include "extensions/common/extension.h"
+#include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::SiteInstance;
 using content::WebContents;
 using content::WebContentsTester;
 using extensions::Extension;
 
 namespace {
 
 // Class used to delete a WebContents and TabStripModel when another WebContents
@@ skipping 374 matching lines @@
 
  private:
   std::vector<State> states_;
 
   bool empty_;
   TabStripModel* model_;
 
   DISALLOW_COPY_AND_ASSIGN(MockTabStripModelObserver);
 };
 
+class MockWebContentsObserver : public content::WebContentsObserver {
+ public:
+   explicit MockWebContentsObserver(WebContents* web_contents)
+     : WebContentsObserver(web_contents) {}
+   MOCK_METHOD2(
+       WebContentsReplaced,
+       void(WebContents* old_web_contents, WebContents* new_web_contents));
+};
+
 TEST_F(TabStripModelTest, TestBasicAPI) {
   TabStripDummyDelegate delegate;
   TabStripModel tabstrip(&delegate, profile());
   MockTabStripModelObserver observer(&tabstrip);
   tabstrip.AddObserver(&observer);
 
   EXPECT_TRUE(tabstrip.empty());
 
   typedef MockTabStripModelObserver::State State;
 
@@ skipping 1672 matching lines @@
 
   ASSERT_EQ(1, tabstrip_observer.GetStateCount());
 
   state = State(new_contents, 1, MockTabStripModelObserver::REPLACED);
   state.src_contents = third_contents;
   EXPECT_TRUE(tabstrip_observer.StateEquals(0, state));
 
   strip.CloseAllTabs();
 }
 
+// Makes sure the TabStripModel notifies a WebContents during its replacement.
+TEST_F(TabStripModelTest, ReplaceNotifiesWebContents) {
+  TabStripDummyDelegate delegate;
+  TabStripModel strip(&delegate, profile());
+
+  WebContents* contents1 = CreateWebContents();
+  WebContents* contents2 = CreateWebContents();
+  strip.AppendWebContents(contents1, true);
+
+  MockWebContentsObserver observer(contents1);
+  EXPECT_CALL(observer, WebContentsReplaced(contents1, contents2));
+  delete strip.ReplaceWebContentsAt(0, contents2);
+
+  strip.CloseAllTabs();
+}
+
 // Makes sure TabStripModel handles the case of deleting a tab while removing
 // another tab.
 TEST_F(TabStripModelTest, DeleteFromDestroy) {
   TabStripDummyDelegate delegate;
   TabStripModel strip(&delegate, profile());
   WebContents* contents1 = CreateWebContents();
   WebContents* contents2 = CreateWebContents();
   MockTabStripModelObserver tab_strip_model_observer(&strip);
   strip.AppendWebContents(contents1, true);
   strip.AppendWebContents(contents2, true);
@@ skipping 407 matching lines @@
   strip.AddObserver(&observer);
 
   strip.ActivateTabAt(1, true);
   EXPECT_EQ(1, strip.active_index());
 
   strip.MoveWebContentsAt(2, 3, true);
   EXPECT_EQ(3, strip.active_index());
 
   strip.CloseAllTabs();
 }