gpu: Initialize GLFakeQueries data members.

gpu/command_buffer/service/gpu_tracer_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 <map>
 #include <set>
 
 #include "base/bind.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_mock.h"
 #include "gpu/command_buffer/service/gpu_service_test.h"
@@ skipping 123 matching lines @@
   }
 
   void Finish() {
   }
 
   GLenum GetError() {
     return GL_NO_ERROR;
   }
 
  protected:
-  bool disjointed_;
-  GLint64 current_time_;
-  GLuint next_query_id_;
+  bool disjointed_ = false;
+  GLint64 current_time_ = 0;
+  GLuint next_query_id_ = 0;
   std::set<GLuint> alloced_queries_;
   std::map<GLuint, GLint64> query_timestamp_;
 };
 
 class GPUTracerTester : public GPUTracer {
  public:
   explicit GPUTracerTester(gles2::GLES2Decoder* decoder)
       : GPUTracer(decoder), tracing_enabled_(0) {
     gpu_timing_.SetCpuTimeForTesting(base::Bind(&FakeCpuTime));
 
@@ skipping 482 matching lines @@
 
   ASSERT_TRUE(tracer_tester_->BeginDecoding());
   EXPECT_TRUE(
       tracer_tester_->Begin(category_name, trace_name, kTraceGroupMarker));
   ASSERT_TRUE(tracer_tester_->EndDecoding());
 }
 
 }  // namespace
 }  // namespace gles2
 }  // namespace gpu