Clean up of GLES2 Command Decoder by moving some of the error state into a separate class.

gpu/command_buffer/service/vertex_attrib_manager.cc

Index: gpu/command_buffer/service/vertex_attrib_manager.cc
diff --git a/gpu/command_buffer/service/vertex_attrib_manager.cc b/gpu/command_buffer/service/vertex_attrib_manager.cc
index 9bba30d7afa37d154181b95a4e63b90e0116cee8..e1ae1c065839d943b556816d031a3c4bc9cb6bcc 100644
--- a/gpu/command_buffer/service/vertex_attrib_manager.cc
+++ b/gpu/command_buffer/service/vertex_attrib_manager.cc
@@ -15,6 +15,7 @@
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/buffer_manager.h"
+#include "gpu/command_buffer/service/error_state.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ -166,6 +167,7 @@ bool VertexAttribManager::ValidateBindings(
     Program* current_program,
     GLuint max_vertex_accessed,
     GLsizei primcount) {
+  ErrorState* error_state = decoder->GetErrorState();
   // true if any enabled, used divisor is zero
   bool divisor0 = false;
   const GLuint kInitialBufferId = 0xFFFFFFFFU;
@@ -186,8 +188,8 @@ bool VertexAttribManager::ValidateBindings(
       GLuint count = attrib->MaxVertexAccessed(primcount, max_vertex_accessed);
       // This attrib is used in the current program.
       if (!attrib->CanAccess(count)) {
-        GLESDECODER_SET_GL_ERROR(
-            decoder, GL_INVALID_OPERATION, function_name,
+        ERRORSTATE_SET_GL_ERROR(
+            error_state, GL_INVALID_OPERATION, function_name,
             (std::string(
                  "attempt to access out of range vertices in attribute ") +
              base::IntToString(attrib->index())).c_str());
@@ -231,8 +233,8 @@ bool VertexAttribManager::ValidateBindings(
     } else {
       // This attrib is not used in the current program.
       if (!attrib->buffer()) {
-        GLESDECODER_SET_GL_ERROR(
-            decoder, GL_INVALID_OPERATION, function_name,
+        ERRORSTATE_SET_GL_ERROR(
+            error_state, GL_INVALID_OPERATION, function_name,
             (std::string(
                  "attempt to render with no buffer attached to "
                  "enabled attribute ") +
@@ -253,8 +255,8 @@ bool VertexAttribManager::ValidateBindings(
   }
 
   if (primcount && !divisor0) {
-    GLESDECODER_SET_GL_ERROR(
-        decoder, GL_INVALID_OPERATION, function_name,
+    ERRORSTATE_SET_GL_ERROR(
+        error_state, GL_INVALID_OPERATION, function_name,
         "attempt instanced render with all attributes having "
         "non-zero divisors");
     return false;