Fix classes that have too many virtuals for inline constructors.

content/public/browser/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 CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 125 matching lines @@
 // Embedder API (or SPI) for participating in browser logic, to be implemented
 // by the client of the content browser. See ChromeContentBrowserClient for the
 // principal implementation. The methods are assumed to be called on the UI
 // thread unless otherwise specified. Use this "escape hatch" sparingly, to
 // avoid the embedder interface ballooning and becoming very specific to Chrome.
 // (Often, the call out to the client can happen in a different part of the code
 // that either already has a hook out to the embedder, or calls out to one of
 // the observer interfaces.)
 class CONTENT_EXPORT ContentBrowserClient {
  public:
+  ContentBrowserClient();
   virtual ~ContentBrowserClient() {}
 
   // Allows the embedder to set any number of custom BrowserMainParts
   // implementations for the browser startup code. See comments in
   // browser_main_parts.h.
   virtual BrowserMainParts* CreateBrowserMainParts(
       const MainFunctionParams& parameters);
 
   // Allows the embedder to change the default behavior of
   // BrowserThread::PostAfterStartupTask to better match whatever
@@ skipping 598 matching lines @@
   // Allows an embedder to provide its own ExternalVideoSurfaceContainer
   // implementation.  Return nullptr to disable external surface video.
   virtual ExternalVideoSurfaceContainer*
   OverrideCreateExternalVideoSurfaceContainer(WebContents* web_contents);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_