Abstract ToolbarModelImpl dependencies on //content.

chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc

 // Copyright 2016 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/toolbar/chrome_toolbar_model_delegate.h"
 
+#include "base/logging.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/search/search.h"
+#include "chrome/browser/ssl/chrome_security_state_model_client.h"
 #include "chrome/common/pref_names.h"
+#include "chrome/common/url_constants.h"
+#include "components/google/core/browser/google_util.h"
 #include "components/omnibox/browser/autocomplete_input.h"
 #include "components/prefs/pref_service.h"
+#include "content/public/browser/cert_store.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/ssl_status.h"
+
+ChromeToolbarModelDelegate::ChromeToolbarModelDelegate() {}
+
+ChromeToolbarModelDelegate::~ChromeToolbarModelDelegate() {}
 
 std::string ChromeToolbarModelDelegate::GetAcceptLanguages() const {
   Profile* profile = GetProfile();
   return profile ? profile->GetPrefs()->GetString(prefs::kAcceptLanguages)
                  : std::string();
 }
 
 base::string16 ChromeToolbarModelDelegate::FormattedStringWithEquivalentMeaning(
     const GURL& url,
     const base::string16& formatted_url) const {
   return AutocompleteInput::FormattedStringWithEquivalentMeaning(
       url, formatted_url, ChromeAutocompleteSchemeClassifier(GetProfile()));
 }
 
-ChromeToolbarModelDelegate::ChromeToolbarModelDelegate() {}
+bool ChromeToolbarModelDelegate::GetURL(GURL* url) const {
+  DCHECK(url);
+  content::NavigationEntry* entry = GetNavigationEntry();
+  if (!entry)
+    return false;
 
-ChromeToolbarModelDelegate::~ChromeToolbarModelDelegate() {}
+  *url = ShouldDisplayURL() ? entry->GetVirtualURL() : GURL();
+  return true;
+}
+
+bool ChromeToolbarModelDelegate::ShouldDisplayURL() const {
+  // Note: The order here is important.
+  // - The WebUI test must come before the extension scheme test because there
+  //   can be WebUIs that have extension schemes (e.g. the bookmark manager). In
+  //   that case, we should prefer what the WebUI instance says.
+  // - The view-source test must come before the NTP test because of the case
+  //   of view-source:chrome://newtab, which should display its URL despite what
+  //   chrome://newtab says.
+  content::NavigationEntry* entry = GetNavigationEntry();
+  if (entry) {
+    if (entry->IsViewSourceMode() ||
+        entry->GetPageType() == content::PAGE_TYPE_INTERSTITIAL) {
+      return true;
+    }
+
+    GURL url = entry->GetURL();
+    GURL virtual_url = entry->GetVirtualURL();
+    if (url.SchemeIs(content::kChromeUIScheme) ||
+        virtual_url.SchemeIs(content::kChromeUIScheme)) {
+      if (!url.SchemeIs(content::kChromeUIScheme))
+        url = virtual_url;
+      return url.host() != chrome::kChromeUINewTabHost;
+    }
+  }
+
+  return !search::IsInstantNTP(GetActiveWebContents());
+}
+
+security_state::SecurityStateModel::SecurityLevel
+ChromeToolbarModelDelegate::GetSecurityLevel() const {
+  content::WebContents* web_contents = GetActiveWebContents();
+  // If there is no active WebContents (which can happen during toolbar
+  // initialization), assume no security style.
+  if (!web_contents)
+    return security_state::SecurityStateModel::NONE;
+  auto* client = ChromeSecurityStateModelClient::FromWebContents(web_contents);
+  return client->GetSecurityInfo().security_level;
+}
+
+base::string16 ChromeToolbarModelDelegate::GetSearchTerms(
+    security_state::SecurityStateModel::SecurityLevel security_level) const {
+  content::WebContents* web_contents = GetActiveWebContents();
+  base::string16 search_terms(search::GetSearchTerms(web_contents));
+  if (search_terms.empty()) {
+    // We mainly do this to enforce the subsequent DCHECK.
+    return base::string16();
+  }
+
+  // If the page is still loading and the security style is unknown, consider
+  // the page secure.  Without this, after the user hit enter on some search
+  // terms, the omnibox would change to displaying the loading URL before
+  // changing back to the search terms once they could be extracted, thus
+  // causing annoying flicker.
+  DCHECK(web_contents);
+  content::NavigationController& nav_controller = web_contents->GetController();
+  content::NavigationEntry* entry = nav_controller.GetVisibleEntry();
+  if ((entry != nav_controller.GetLastCommittedEntry()) &&
+      (entry->GetSSL().security_style == content::SECURITY_STYLE_UNKNOWN))
+    return search_terms;
+
+  // If the URL is using a Google base URL specified via the command line, we
+  // bypass the security check below.
+  if (entry &&
+      google_util::StartsWithCommandLineGoogleBaseURL(entry->GetVirtualURL()))
+    return search_terms;
+
+  // Otherwise, extract search terms for HTTPS pages that do not have a security
+  // error.
+  bool extract_search_terms =
+      (security_level != security_state::SecurityStateModel::NONE) &&
+      (security_level != security_state::SecurityStateModel::SECURITY_ERROR);
+  return extract_search_terms ? search_terms : base::string16();
+}
+
+scoped_refptr<net::X509Certificate> ChromeToolbarModelDelegate::GetCertificate()
+    const {
+  scoped_refptr<net::X509Certificate> cert;
+  content::NavigationEntry* entry = GetNavigationEntry();
+  if (entry) {
+    content::CertStore::GetInstance()->RetrieveCert(entry->GetSSL().cert_id,
+                                                    &cert);
+  }
+  return cert;
+}
 
 content::NavigationController*
 ChromeToolbarModelDelegate::GetNavigationController() const {
   // This |current_tab| can be null during the initialization of the toolbar
   // during window creation (i.e. before any tabs have been added to the
   // window).
   content::WebContents* current_tab = GetActiveWebContents();
   return current_tab ? &current_tab->GetController() : nullptr;
 }
 
+content::NavigationEntry* ChromeToolbarModelDelegate::GetNavigationEntry()
+    const {
+  content::NavigationController* controller = GetNavigationController();
+  return controller ? controller->GetVisibleEntry() : nullptr;
+}
+
 Profile* ChromeToolbarModelDelegate::GetProfile() const {
-  content::NavigationController* navigation_controller =
-      GetNavigationController();
-  return navigation_controller ? Profile::FromBrowserContext(
-                                     navigation_controller->GetBrowserContext())
-                               : nullptr;
+  content::NavigationController* controller = GetNavigationController();
+  return controller
+             ? Profile::FromBrowserContext(controller->GetBrowserContext())
+             : nullptr;
 }