Replace usage of WebVector::isEmpty with WebVector::empty().

third_party/WebKit/Source/platform/WebVectorTest.cpp

 // Copyright 2015 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 "public/platform/WebVector.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/Vector.h"
 
@@ skipping 31 matching lines @@
   output.clear();
   for (int x : webVector)
     output.push_back(x);
   ASSERT_EQ(input.size(), output.size());
   for (size_t i = 0; i < input.size(); ++i)
     EXPECT_EQ(input[i], output[i]);
 }
 
 TEST(WebVectorTest, IsEmpty) {
   WebVector<int> vector;
-  ASSERT_TRUE(vector.isEmpty());
+  ASSERT_TRUE(vector.empty());
   int value = 1;
   vector.assign(&value, 1);
   ASSERT_EQ(1u, vector.size());
-  ASSERT_FALSE(vector.isEmpty());
+  ASSERT_FALSE(vector.empty());
 }
 
 TEST(WebVectorTest, Swap) {
   const int firstData[] = {1, 2, 3, 4, 5};
   const int secondData[] = {6, 5, 8};
   const size_t kFirstDataLength = WTF_ARRAY_LENGTH(firstData);
   const size_t kSecondDataLength = WTF_ARRAY_LENGTH(secondData);
 
   WebVector<int> first(firstData, kFirstDataLength);
   WebVector<int> second(secondData, kSecondDataLength);
@@ skipping 51 matching lines @@
     EXPECT_EQ(input[i], vector[i]);
 
   WebVector<int> assigned;
   assigned = input;
   ASSERT_EQ(input.size(), assigned.size());
   for (size_t i = 0; i < assigned.size(); ++i)
     EXPECT_EQ(input[i], assigned[i]);
 }
 
 }  // namespace blink