gpu: Assert that FencedAllocator is empty in destructor

gpu/command_buffer/client/gles2_implementation_unittest.cc

 // Copyright (c) 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.
 
 // Tests for GLES2Implementation.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <limits>
 
@@ skipping 3257 matching lines @@
   EXPECT_EQ(GL_INVALID_OPERATION, CheckError());
   EXPECT_STREQ(kOffsetOverflowMessage, GetLastError().c_str());
 
   // BufferSubData: size
   EXPECT_EQ(GL_NO_ERROR, CheckError());
   gl_->BufferSubData(GL_ARRAY_BUFFER, 0, size, buf);
   EXPECT_EQ(GL_INVALID_OPERATION, CheckError());
   EXPECT_STREQ(kSizeOverflowMessage, GetLastError().c_str());
 
   // Call MapBufferSubDataCHROMIUM() should succeed with legal paramaters.
-  EXPECT_TRUE(NULL != gl_->MapBufferSubDataCHROMIUM(
-      GL_ARRAY_BUFFER, 0, 1, GL_WRITE_ONLY));
+  void* mem =
+      gl_->MapBufferSubDataCHROMIUM(GL_ARRAY_BUFFER, 0, 1, GL_WRITE_ONLY);
+  EXPECT_TRUE(NULL != mem);
   EXPECT_EQ(GL_NO_ERROR, CheckError());
+  gl_->UnmapBufferSubDataCHROMIUM(mem);
 
   // MapBufferSubDataCHROMIUM: offset
   EXPECT_TRUE(NULL == gl_->MapBufferSubDataCHROMIUM(
       GL_ARRAY_BUFFER, offset, 1, GL_WRITE_ONLY));
   EXPECT_EQ(GL_INVALID_OPERATION, CheckError());
   EXPECT_STREQ(kOffsetOverflowMessage, GetLastError().c_str());
 
   // MapBufferSubDataCHROMIUM: size
   EXPECT_EQ(GL_NO_ERROR, CheckError());
   EXPECT_TRUE(NULL == gl_->MapBufferSubDataCHROMIUM(
@@ skipping 82 matching lines @@
   ContextInitOptions init_options;
   init_options.bind_generates_resource_client = true;
   init_options.bind_generates_resource_service = false;
   EXPECT_FALSE(Initialize(init_options));
 }
 
 #include "gpu/command_buffer/client/gles2_implementation_unittest_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu