PlzNavigate: Move navigation-level mixed content checks to the browser.

chrome/browser/chrome_content_browser_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 #define CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 240 matching lines @@
   content::TracingDelegate* GetTracingDelegate() override;
   bool IsPluginAllowedToCallRequestOSFileHandle(
       content::BrowserContext* browser_context,
       const GURL& url) override;
   bool IsPluginAllowedToUseDevChannelAPIs(
       content::BrowserContext* browser_context,
       const GURL& url) override;
   void OverridePageVisibilityState(
       content::RenderFrameHost* render_frame_host,
       blink::WebPageVisibilityState* visibility_state) override;
+  void PassiveInsecureContentFound(const GURL& resource_url) override;
+  bool ShouldAllowRunningInsecureContent(
+      bool allowed_per_settings,
+      const url::Origin& origin,
+      const GURL& resource_url,
+      content::WebContents* web_contents) override;
 
 #if defined(OS_ANDROID)
   void GetAdditionalMappedFilesForChildProcess(
       const base::CommandLine& command_line,
       int child_process_id,
       content::FileDescriptorInfo* mappings,
       std::map<int, base::MemoryMappedFile::Region>* regions) override;
 #elif defined(OS_POSIX) && !defined(OS_MACOSX)
   void GetAdditionalMappedFilesForChildProcess(
       const base::CommandLine& command_line,
@@ skipping 98 matching lines @@
   // Vector of additional ChromeContentBrowserClientParts.
   // Parts are deleted in the reverse order they are added.
   std::vector<ChromeContentBrowserClientParts*> extra_parts_;
 
   base::WeakPtrFactory<ChromeContentBrowserClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClient);
 };
 
 #endif  // CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_