Revert 93066 - Execute all GL commands up to the put offset reported by a each flush.This means g...

gpu/command_buffer/common/cmd_buffer_common.h

Index: gpu/command_buffer/common/cmd_buffer_common.h
===================================================================
--- gpu/command_buffer/common/cmd_buffer_common.h	(revision 93137)
+++ gpu/command_buffer/common/cmd_buffer_common.h	(working copy)
@@ -158,6 +158,7 @@
   OP(SetBucketDataImmediate)        /*  9 */ \
   OP(GetBucketSize)                 /* 10 */ \
   OP(GetBucketData)                 /* 11 */ \
+  OP(YieldScheduler)                /* 12 */ \
 
 // Common commands.
 enum CommandId {
@@ -642,6 +643,32 @@
 COMPILE_ASSERT(offsetof(GetBucketData, shared_memory_offset) == 20,
                Offsetof_GetBucketData_shared_memory_offset_not_20);
 
+// A Yield command. Hints the scheduler that this is a good point to update the
+// state and schedule other command buffers.
+struct YieldScheduler {
+  typedef YieldScheduler ValueType;
+  static const CommandId kCmdId = kYieldScheduler;
+  static const cmd::ArgFlags kArgFlags = cmd::kFixed;
+
+  void SetHeader() {
+    header.SetCmd<ValueType>();
+  }
+
+  void Init() {
+    SetHeader();
+  }
+  static void* Set(void* cmd) {
+    static_cast<ValueType*>(cmd)->Init();
+    return NextCmdAddress<ValueType>(cmd);
+  }
+
+  CommandHeader header;
+};
+
+COMPILE_ASSERT(sizeof(YieldScheduler) == 4, Sizeof_YieldScheduler_is_not_4);
+COMPILE_ASSERT(offsetof(YieldScheduler, header) == 0,
+               Offsetof_YieldScheduler_header_not_0);
+
 }  // namespace cmd
 
 #pragma pack(pop)