Propagate pageScaleFactor to GuestViews

chrome/browser/profiles/host_zoom_map_browsertest.cc

 // Copyright 2014 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 "content/public/browser/host_zoom_map.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 414 matching lines @@
       HostZoomMap::GetDefaultForBrowserContext(child_profile);
   ASSERT_TRUE(parent_host_zoom_map);
   ASSERT_TRUE(child_host_zoom_map);
   EXPECT_NE(parent_host_zoom_map, child_host_zoom_map);
   EXPECT_NE(new_default_zoom_level, child_host_zoom_map->GetDefaultZoomLevel());
 
   parent_profile->GetZoomLevelPrefs()->SetDefaultZoomLevelPref(
       new_default_zoom_level);
   EXPECT_EQ(new_default_zoom_level, child_host_zoom_map->GetDefaultZoomLevel());
 }
+
+IN_PROC_BROWSER_TEST_F(HostZoomMapBrowserTest, PageScaleIsOneChanged) {
+  GURL test_url(url::kAboutBlankURL);
+  std::string test_host(test_url.host());
+
+  ui_test_utils::NavigateToURL(browser(), test_url);
+  content::WebContents* web_contents =
+      browser()->tab_strip_model()->GetActiveWebContents();
+
+  ASSERT_TRUE(content::HostZoomMap::PageScaleFactorIsOne(web_contents));
+
+  ZoomLevelChangeObserver observer(browser()->profile());
+
+  web_contents->SetPageScale(1.5);
+  observer.BlockUntilZoomLevelForHostHasChanged(test_host);
+  EXPECT_FALSE(content::HostZoomMap::PageScaleFactorIsOne(web_contents));
+
+  web_contents->SetPageScale(1.f);
+  observer.BlockUntilZoomLevelForHostHasChanged(test_host);
+  EXPECT_TRUE(content::HostZoomMap::PageScaleFactorIsOne(web_contents));
+}