Fix cpplint errors in cc/(animation|input|layers|trees|test)/

cc/layers/texture_layer_unittest.cc

 // Copyright 2012 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 "cc/layers/texture_layer.h"
 
 #include <string>
 
 #include "base/callback.h"
 #include "cc/base/thread.h"
@@ skipping 11 matching lines @@
 using ::testing::Mock;
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::AnyNumber;
 
 namespace cc {
 namespace {
 
 class MockLayerTreeHost : public LayerTreeHost {
  public:
-  MockLayerTreeHost(LayerTreeHostClient* client)
+  explicit MockLayerTreeHost(LayerTreeHostClient* client)
       : LayerTreeHost(client, LayerTreeSettings()) {
     Initialize(scoped_ptr<Thread>(NULL));
   }
 
   MOCK_METHOD0(AcquireLayerTextures, void());
   MOCK_METHOD0(SetNeedsCommit, void());
 };
 
 class TextureLayerTest : public testing::Test {
  public:
@@ skipping 426 matching lines @@
   EXPECT_CALL(test_data_.mock_callback_, Release(_, _)).Times(0);
   provider->DeleteResource(id);
   Mock::VerifyAndClearExpectations(&test_data_.mock_callback_);
   EXPECT_CALL(test_data_.mock_callback_, Release(test_data_.mailbox_name1_, _))
       .Times(1);
   provider->ReceiveFromParent(list);
 }
 
 }  // namespace
 }  // namespace cc