Ping watchdog thread during GpuChannel destruction

gpu/command_buffer/service/shader_manager.h

Index: gpu/command_buffer/service/shader_manager.h
diff --git a/gpu/command_buffer/service/shader_manager.h b/gpu/command_buffer/service/shader_manager.h
index 2e828e66f1efdd6bbf7ab0314055ff867fa36825..f2f557865d521f9a4cf935b5e883e03456e26105 100644
--- a/gpu/command_buffer/service/shader_manager.h
+++ b/gpu/command_buffer/service/shader_manager.h
@@ -18,6 +18,8 @@
 namespace gpu {
 namespace gles2 {
 
+class ProgressReporter;
+
 enum ShaderVariableBaseType {
   SHADER_VARIABLE_INT = 0x01,
   SHADER_VARIABLE_UINT = 0x02,
@@ -272,7 +274,7 @@ class GPU_EXPORT ShaderManager {
   ~ShaderManager();
 
   // Must call before destruction.
-  void Destroy(bool have_context);
+  void Destroy(bool have_context, ProgressReporter* progress_reporter);
 
   // Creates a shader for the given shader ID.
   Shader* CreateShader(