chromeos: Initial support for crash reporting for chrome --mash

services/ui/gpu/gpu_service.h

Index: services/ui/gpu/gpu_service.h
diff --git a/services/ui/gpu/gpu_service.h b/services/ui/gpu/gpu_service.h
index ae45e553c02bea00d5d318c62163341784e7fd57..8e68db1deb757b566e3a3a41cb8f624c3e3318ba 100644
--- a/services/ui/gpu/gpu_service.h
+++ b/services/ui/gpu/gpu_service.h
@@ -45,6 +45,9 @@ class GpuService : public gpu::GpuChannelManagerDelegate,
                    public mojom::GpuService,
                    public base::NonThreadSafe {
  public:
+  // Crash key for the URL of the active tab.
+  static const char kActiveUrlCrashKey[];
+
   GpuService(const gpu::GPUInfo& gpu_info,
              std::unique_ptr<gpu::GpuWatchdogThread> watchdog,
              gpu::GpuMemoryBufferFactory* memory_buffer_factory,