command_buffer_gles2: Avoid crashing for lack of JNI

gpu/config/gpu_info_collector_android.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.
 
 #include "gpu/config/gpu_info_collector.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/android/build_info.h"
+#include "base/android/jni_android.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/native_library.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "ui/gl/egl_util.h"
@@ skipping 237 matching lines @@
 CollectInfoResult CollectGpuID(uint32_t* vendor_id, uint32_t* device_id) {
   DCHECK(vendor_id && device_id);
   *vendor_id = 0;
   *device_id = 0;
   return kCollectInfoNonFatalFailure;
 }
 
 CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
   gpu_info->can_lose_context = false;
 
-  gpu_info->machine_model_name =
-      base::android::BuildInfo::GetInstance()->model();
+  // When command buffer is compiled as a standalone library, the process might
+  // not have a Java environment.
+  if (base::android::IsVMInitialized()) {
+    gpu_info->machine_model_name =
+        base::android::BuildInfo::GetInstance()->model();
+  }
 
   // Create a short-lived context on the UI thread to collect the GL strings.
   // Make sure we restore the existing context if there is one.
   CollectInfoResult result = CollectDriverInfo(gpu_info);
   if (result == kCollectInfoSuccess)
     result = CollectDriverInfoGL(gpu_info);
   gpu_info->basic_info_state = result;
   gpu_info->context_info_state = result;
   return result;
 }
 
 CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info) {
   gpu_info->driver_version = GetDriverVersionFromString(
       gpu_info->gl_version);
   gpu_info->gpu.vendor_string = gpu_info->gl_vendor;
   gpu_info->gpu.device_string = gpu_info->gl_renderer;
   return kCollectInfoSuccess;
 }
 
 void MergeGPUInfo(GPUInfo* basic_gpu_info,
                   const GPUInfo& context_gpu_info) {
   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 }
 
 }  // namespace gpu