Adds support for the GL_ANGLE_texture_usage and GL_EXT_texture_storage

gpu/command_buffer/client/gles2_implementation_autogen.h

 // Copyright (c) 2011 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // DO NOT EDIT!
 
 // This file is included by gles2_implementation.h to declare the
 // GL api functions.
@@ skipping 1206 matching lines @@
   }
   if (height < 0) {
     SetGLError(
         GL_INVALID_VALUE, "glRenderbufferStorageMultisampleEXT: height < 0");
     return;
   }
   helper_->RenderbufferStorageMultisampleEXT(
       target, samples, internalformat, width, height);
 }
 
+void TexStorage2DEXT(
+    GLenum target, GLsizei levels, GLint internalFormat, GLsizei width,
+    GLsizei height) {
+  GPU_CLIENT_LOG("[" << this << "] glTexStorage2DEXT(" << GLES2Util::GetStringTextureTarget(target) << ", " << levels << ", " << internalFormat << ", " << width << ", " << height << ")");  // NOLINT
+  if (levels < 0) {
+    SetGLError(GL_INVALID_VALUE, "glTexStorage2DEXT: levels < 0");
+    return;
+  }
+  if (width < 0) {
+    SetGLError(GL_INVALID_VALUE, "glTexStorage2DEXT: width < 0");
+    return;
+  }
+  if (height < 0) {
+    SetGLError(GL_INVALID_VALUE, "glTexStorage2DEXT: height < 0");
+    return;
+  }
+  helper_->TexStorage2DEXT(target, levels, internalFormat, width, height);
+}
+
 void SwapBuffers();
 
 GLuint GetMaxValueInBufferCHROMIUM(
     GLuint buffer_id, GLsizei count, GLenum type, GLuint offset) {
   GPU_CLIENT_LOG("[" << this << "] glGetMaxValueInBufferCHROMIUM(" << buffer_id << ", " << count << ", " << GLES2Util::GetStringGetMaxIndexType(type) << ", " << offset << ")");  // NOLINT
   typedef GetMaxValueInBufferCHROMIUM::Result Result;
   Result* result = GetResultAs<Result*>();
   *result = 0;
   helper_->GetMaxValueInBufferCHROMIUM(
       buffer_id, count, type, offset, GetResultShmId(), GetResultShmOffset());
@@ skipping 80 matching lines @@
   if (height < 0) {
     SetGLError(GL_INVALID_VALUE, "glTexImageIOSurface2DCHROMIUM: height < 0");
     return;
   }
   helper_->TexImageIOSurface2DCHROMIUM(
       target, width, height, ioSurfaceId, plane);
 }
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_IMPLEMENTATION_AUTOGEN_H_