Introduce ChromeZoomLevelPref, make zoom level prefs independent of profile prefs.

chrome/browser/ui/pdf/pdf_unsupported_feature.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/pdf/pdf_unsupported_feature.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
 #include "chrome/browser/plugins/plugin_metadata.h"
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_preferences_util.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/pdf/browser/open_pdf_in_reader_prompt_client.h"
 #include "components/pdf/browser/pdf_web_contents_helper.h"
+#include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/interstitial_page.h"
 #include "content/public/browser/interstitial_page_delegate.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/renderer_preferences.h"
 #include "grit/browser_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/webui/jstemplate_builder.h"
 
 #if defined(OS_WIN)
 #include "base/win/metro.h"
 #include "chrome/browser/ui/pdf/adobe_reader_info_win.h"
 #endif
 
@@ skipping 171 matching lines @@
       NOTREACHED();
     }
     interstitial_page_->Proceed();
   }
 
   virtual void OverrideRendererPrefs(
       content::RendererPreferences* prefs) OVERRIDE {
     Profile* profile =
         Profile::FromBrowserContext(web_contents_->GetBrowserContext());
     renderer_preferences_util::UpdateFromSystemSettings(prefs, profile);
+    // TODO(wjmaclean): Convert this to use the HostZoomMap for the WebContents
+    // when HostZoomMap moves to StoragePartition.
+    prefs->default_zoom_level =
+        content::HostZoomMap::GetDefaultForBrowserContext(profile)
+            ->GetDefaultZoomLevel();
   }
 
  private:
   WebContents* web_contents_;
   WebPluginInfo reader_webplugininfo_;
   InterstitialPage* interstitial_page_;  // Owns us.
 
   DISALLOW_COPY_AND_ASSIGN(PDFUnsupportedFeatureInterstitial);
 };
 
@@ skipping 126 matching lines @@
     MaybeShowOpenPDFInReaderPrompt(web_contents, reader_info);
     return;
   }
   GetAdobeReaderPluginInfoAsync(
       profile,
       base::Bind(&GotPluginsCallback,
                  web_contents->GetRenderProcessHost()->GetID(),
                  web_contents->GetRenderViewHost()->GetRoutingID()));
 #endif  // defined(OS_WIN)
 }