Revert of Report lost context from GLES2Implementation based on share group state.

gpu/command_buffer/service/in_process_command_buffer.cc

Index: gpu/command_buffer/service/in_process_command_buffer.cc
diff --git a/gpu/command_buffer/service/in_process_command_buffer.cc b/gpu/command_buffer/service/in_process_command_buffer.cc
index 29c59290476ba944bd021084e96639bcbd46ccdd..f3140b2a7a6d8894971fb2c9f586c173c7f72d99 100644
--- a/gpu/command_buffer/service/in_process_command_buffer.cc
+++ b/gpu/command_buffer/service/in_process_command_buffer.cc
@@ -918,6 +918,12 @@
   NOTREACHED();
 }
 
+bool InProcessCommandBuffer::IsGpuChannelLost() {
+  // There is no such channel to lose for in-process contexts. This only
+  // makes sense for out-of-process command buffers.
+  return false;
+}
+
 void InProcessCommandBuffer::EnsureWorkVisible() {
   // This is only relevant for out-of-process command buffers.
 }