Remove gfx::FrameTime for a single clock source

cc/output/begin_frame_args_unittest.cc

 // Copyright 2014 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 <string>
 
 #include "cc/output/begin_frame_args.h"
 #include "cc/test/begin_frame_args_test.h"
 #include "testing/gtest/include/gtest/gtest-spi.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/frame_time.h"
 
 namespace cc {
 namespace {
 
 TEST(BeginFrameArgsTest, Helpers) {
   // Quick create methods work
   BeginFrameArgs args0 = CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE);
   EXPECT_TRUE(args0.IsValid()) << args0;
 
   BeginFrameArgs args1 =
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, 0, 0, -1);
   EXPECT_FALSE(args1.IsValid()) << args1;
 
   BeginFrameArgs args2 =
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, 1, 2, 3);
   EXPECT_TRUE(args2.IsValid()) << args2;
   EXPECT_EQ(1, args2.frame_time.ToInternalValue());
   EXPECT_EQ(2, args2.deadline.ToInternalValue());
   EXPECT_EQ(3, args2.interval.ToInternalValue());
   EXPECT_EQ(BeginFrameArgs::NORMAL, args2.type);
 
   BeginFrameArgs args3 =
       CreateExpiredBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE);
   EXPECT_TRUE(args3.IsValid()) << args3;
-  EXPECT_GT(gfx::FrameTime::Now(), args3.deadline);
+  EXPECT_GT(base::TimeTicks::Now(), args3.deadline);
   EXPECT_EQ(BeginFrameArgs::NORMAL, args3.type);
 
   BeginFrameArgs args4 = CreateBeginFrameArgsForTesting(
       BEGINFRAME_FROM_HERE, 1, 2, 3, BeginFrameArgs::MISSED);
   EXPECT_TRUE(args4.IsValid()) << args4;
   EXPECT_EQ(1, args4.frame_time.ToInternalValue());
   EXPECT_EQ(2, args4.deadline.ToInternalValue());
   EXPECT_EQ(3, args4.interval.ToInternalValue());
   EXPECT_EQ(BeginFrameArgs::MISSED, args4.type);
 
@@ skipping 47 matching lines @@
 TEST(BeginFrameArgsTest, Location) {
   tracked_objects::Location expected_location = BEGINFRAME_FROM_HERE;
 
   BeginFrameArgs args = CreateBeginFrameArgsForTesting(expected_location);
   EXPECT_EQ(expected_location.ToString(), args.created_from.ToString());
 }
 #endif
 
 }  // namespace
 }  // namespace cc