Adding ThreadChecker validation to d'tors for client classes

remoting/client/display/gl_cursor.cc

 // Copyright 2016 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 "remoting/client/display/gl_cursor.h"
 
 #include "remoting/base/util.h"
 #include "remoting/client/display/gl_canvas.h"
 #include "remoting/client/display/gl_math.h"
 #include "remoting/client/display/gl_render_layer.h"
 #include "remoting/client/display/gl_texture_ids.h"
 #include "remoting/proto/control.pb.h"
 #include "third_party/libyuv/include/libyuv/convert_argb.h"
 
 namespace remoting {
 
 namespace {
 const int kDefaultCursorDataSize = 32 * 32 * GlRenderLayer::kBytesPerPixel;
 }  // namespace
 
 GlCursor::GlCursor() : weak_factory_(this) {}
 
-GlCursor::~GlCursor() {}
+GlCursor::~GlCursor() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+}
 
 void GlCursor::SetCursorShape(const protocol::CursorShapeInfo& cursor_shape) {
   int data_size = cursor_shape.width() * cursor_shape.height() *
                   GlRenderLayer::kBytesPerPixel;
   if (current_cursor_data_size_ < data_size) {
     current_cursor_data_size_ =
         kDefaultCursorDataSize > data_size ? kDefaultCursorDataSize : data_size;
     current_cursor_data_.reset(new uint8_t[current_cursor_data_size_]);
   }
   int stride = cursor_shape.width() * GlRenderLayer::kBytesPerPixel;
@@ skipping 69 matching lines @@
     }
   }
 }
 
 base::WeakPtr<Drawable> GlCursor::GetWeakPtr() {
   DCHECK(thread_checker_.CalledOnValidThread());
   return weak_factory_.GetWeakPtr();
 }
 
 }  // namespace remoting