[ios] Moved WebLoadParams inside NavigationManager.

ios/web/navigation/navigation_manager_impl.mm

 // 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.
 
 #include "ios/web/navigation/navigation_manager_impl.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 20 matching lines @@
   url::Replacements<char> replacements;
   replacements.ClearRef();
   return existing_url.ReplaceComponents(replacements) ==
          new_url.ReplaceComponents(replacements);
 }
 
 }  // anonymous namespace
 
 namespace web {
 
+NavigationManager::WebLoadParams::WebLoadParams(const GURL& url)
+    : url(url),
+      transition_type(ui::PAGE_TRANSITION_LINK),
+      is_renderer_initiated(false),
+      post_data(nil) {}
+
+NavigationManager::WebLoadParams::~WebLoadParams() {}
+
+NavigationManager::WebLoadParams::WebLoadParams(const WebLoadParams& other)
+    : url(other.url),
+      referrer(other.referrer),
+      transition_type(other.transition_type),
+      is_renderer_initiated(other.is_renderer_initiated),
+      extra_headers([other.extra_headers copy]),
+      post_data([other.post_data copy]) {}
+
+NavigationManager::WebLoadParams& NavigationManager::WebLoadParams::operator=(
+    const WebLoadParams& other) {
+  url = other.url;
+  referrer = other.referrer;
+  is_renderer_initiated = other.is_renderer_initiated;
+  transition_type = other.transition_type;
+  extra_headers.reset([other.extra_headers copy]);
+  post_data.reset([other.post_data copy]);
+
+  return *this;
+}
+
 NavigationManagerImpl::NavigationManagerImpl(
     NavigationManagerDelegate* delegate,
     BrowserState* browser_state)
     : delegate_(delegate),
       browser_state_(browser_state),
       facade_delegate_(nullptr) {
   DCHECK(browser_state_);
 }
 
 NavigationManagerImpl::~NavigationManagerImpl() {
@@ skipping 231 matching lines @@
   transient_url_rewriters_.reset();
 }
 
 void NavigationManagerImpl::CopyState(
     NavigationManagerImpl* navigation_manager) {
   SetSessionController(
       [[navigation_manager->GetSessionController() copy] autorelease]);
 }
 
 }  // namespace web