s/IsSamePage/IsSameDocument for NavigationContext.

ios/web/web_state/web_state_observer_bridge_unittest.mm

 // Copyright 2017 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.
 
 #import "ios/web/public/web_state/web_state_observer_bridge.h"
 
 #import "base/mac/scoped_nsobject.h"
 #include "base/memory/ptr_util.h"
 #include "ios/web/public/favicon_url.h"
 #import "ios/web/public/test/fakes/crw_test_web_state_observer.h"
@@ skipping 39 matching lines @@
       web::NavigationContextImpl::CreateNavigationContext(&test_web_state_,
                                                           url);
   bridge_->DidFinishNavigation(context.get());
 
   ASSERT_TRUE([observer_ didFinishNavigationInfo]);
   EXPECT_EQ(&test_web_state_, [observer_ didFinishNavigationInfo]->web_state);
   web::NavigationContext* actual_context =
       [observer_ didFinishNavigationInfo]->context.get();
   ASSERT_TRUE(actual_context);
   EXPECT_EQ(&test_web_state_, actual_context->GetWebState());
-  EXPECT_EQ(context->IsSamePage(), actual_context->IsSamePage());
+  EXPECT_EQ(context->IsSameDocument(), actual_context->IsSameDocument());
   EXPECT_EQ(context->IsErrorPage(), actual_context->IsErrorPage());
   EXPECT_EQ(context->GetUrl(), actual_context->GetUrl());
 }
 
 // Tests |webState:didCommitNavigationWithDetails:| forwarding.
 TEST_F(WebStateObserverBridgeTest, NavigationItemCommitted) {
   ASSERT_FALSE([observer_ commitNavigationInfo]);
 
   LoadCommittedDetails load_details;
   load_details.item = reinterpret_cast<web::NavigationItem*>(1);
@@ skipping 144 matching lines @@
 // Tests |webState:webStateDidStartLoading:| forwarding.
 TEST_F(WebStateObserverBridgeTest, DidStartLoading) {
   ASSERT_FALSE([observer_ startLoadingInfo]);
 
   bridge_->DidStartLoading();
   ASSERT_TRUE([observer_ startLoadingInfo]);
   EXPECT_EQ(&test_web_state_, [observer_ startLoadingInfo]->web_state);
 }
 
 }  // namespace web