Apply per-tab preference after RenderViewImpl creation.

chrome/browser/ui/tab_contents/per_tab_prefs_tab_helper_unittest.cc

 // Copyright (c) 2011 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/common/pref_names.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/ui/tab_contents/per_tab_prefs_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/browser/ui/tab_contents/test_tab_contents_wrapper.h"
 #include "content/browser/tab_contents/test_tab_contents.h"
 #include "content/test/test_browser_thread.h"
 
 using content::BrowserThread;
 
+class TestPerTabPrefsTabHelper : public PerTabPrefsTabHelper {
+ public:
+  explicit TestPerTabPrefsTabHelper(TabContentsWrapper* tab_contents)
+      : PerTabPrefsTabHelper(tab_contents),
+        was_override_web_prefernces_called_(false) {
+  }
+  virtual ~TestPerTabPrefsTabHelper() { }
+
+  virtual void OverrideWebPreferences(WebPreferences* prefs) OVERRIDE {
+    was_override_web_prefernces_called_ = true;
+    PerTabPrefsTabHelper::OverrideWebPreferences(prefs);
+  }
+
+  void NotifyRenderViewCreated() {
+    RenderViewCreated(NULL);
+  }
+
+  bool was_override_web_prefernces_called() {
+    return was_override_web_prefernces_called_;
+  }
+
+ private:
+  bool was_override_web_prefernces_called_;
+};
+
 class PerTabPrefsTabHelperTest : public TabContentsWrapperTestHarness {
  public:
   PerTabPrefsTabHelperTest()
       : TabContentsWrapperTestHarness(),
         ui_thread_(BrowserThread::UI, &message_loop_) {}
 
   virtual ~PerTabPrefsTabHelperTest() {}
 
   TabContentsWrapper* contents_wrapper2() {
     return contents_wrapper2_.get();
@@ skipping 35 matching lines @@
   EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
 
   prefs1->SetBoolean(key, initial_value);
   EXPECT_EQ(initial_value, prefs1->GetBoolean(key));
   EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
 
   prefs2->SetBoolean(key, !initial_value);
   EXPECT_EQ(initial_value, prefs1->GetBoolean(key));
   EXPECT_EQ(!initial_value, prefs2->GetBoolean(key));
 }
+
+TEST_F(PerTabPrefsTabHelperTest, OverridePrefsOnViewCreation) {
+  TestPerTabPrefsTabHelper* test_prefs_helper = new TestPerTabPrefsTabHelper(
+      contents_wrapper());
+  contents_wrapper()->per_tab_prefs_tab_helper_.reset(test_prefs_helper);
+  EXPECT_EQ(false, test_prefs_helper->was_override_web_prefernces_called());
+  test_prefs_helper->NotifyRenderViewCreated();
+  EXPECT_EQ(true, test_prefs_helper->was_override_web_prefernces_called());
+}