Add glDrawRangeElements to GPU command buffer.

gpu/command_buffer/client/gles2_implementation.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
@@ skipping 833 matching lines @@
   if (!vertex_array_object_manager_->SetupSimulatedIndexAndClientSideBuffers(
       "glDrawElements", this, helper_, count, type, 0, indices,
       &offset, &simulated)) {
     return;
   }
   helper_->DrawElements(mode, count, type, offset);
   RestoreElementAndArrayBuffers(simulated);
   CheckGLError();
 }
 
+void GLES2Implementation::DrawRangeElements(
+    GLenum mode, GLuint start, GLuint end,
+    GLsizei count, GLenum type, const void* indices) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glDrawRangeElements("
+      << GLES2Util::GetStringDrawMode(mode) << ", "
+      << start << ", " << end << ", " << count << ", "
+      << GLES2Util::GetStringIndexType(type) << ", "
+      << static_cast<const void*>(indices) << ")");
+  // TODO(zmo): mImplement client side data support.
+  // crbug.com/461871
+  helper_->DrawRangeElements(mode, start, end, count, type, ToGLuint(indices));
+  CheckGLError();
+}
+
 void GLES2Implementation::Flush() {
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glFlush()");
   // Insert the cmd to call glFlush
   helper_->Flush();
   // Flush our command buffer
   // (tell the service to execute up to the flush cmd.)
   helper_->CommandBufferHelper::Flush();
 }
 
@@ skipping 4127 matching lines @@
   CheckGLError();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu