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 2f54583addd0adf9fb2d02cc0b72bafc8849534b..ceb8d6a5da339a627eb6c9e7b9d05d064747440d 100644
--- a/gpu/command_buffer/service/in_process_command_buffer.cc
+++ b/gpu/command_buffer/service/in_process_command_buffer.cc
@@ -918,12 +918,6 @@ void InProcessCommandBuffer::SetLock(base::Lock*) {
   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.
 }