components: Cleanup class/struct fwd declarations

components/autofill/content/renderer/password_generation_agent.h

 // Copyright 2013 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 COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/linked_ptr.h"
 #include "components/autofill/content/common/autofill_agent.mojom.h"
 #include "components/autofill/content/common/autofill_driver.mojom.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "third_party/WebKit/public/web/WebInputElement.h"
 #include "url/gurl.h"
 
-namespace blink {
-class WebDocument;
-}
-
 namespace autofill {
 
-struct FormData;
 struct PasswordForm;
 struct PasswordFormGenerationData;
 class PasswordAutofillAgent;
 
 // This class is responsible for controlling communication for password
 // generation between the browser (which shows the popup and generates
 // passwords) and WebKit (shows the generation icon in the password field).
 class PasswordGenerationAgent : public content::RenderFrameObserver,
                                 public mojom::PasswordGenerationAgent {
  public:
@@ skipping 146 matching lines @@
   mojom::PasswordManagerClientAssociatedPtr password_manager_client_;
 
   mojo::Binding<mojom::PasswordGenerationAgent> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordGenerationAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_