Revert of Fix blits from multisampled renderbuffers to alpha:false WebGL back buffer.

gpu/GLES2/gl2extchromium.h

 // 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.
 
 // This file contains Chromium-specific GLES2 extensions declarations.
 
 #ifndef GPU_GLES2_GL2EXTCHROMIUM_H_
 #define GPU_GLES2_GL2EXTCHROMIUM_H_
 
 #include <GLES2/gl2.h>
@@ skipping 66 matching lines @@
 #define GL_CHROMIUM_image 1
 
 typedef struct _ClientBuffer* ClientBuffer;
 
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL GLuint GL_APIENTRY glCreateImageCHROMIUM(ClientBuffer buffer,
                                                     GLsizei width,
                                                     GLsizei height,
                                                     GLenum internalformat);
 GL_APICALL void GL_APIENTRY glDestroyImageCHROMIUM(GLuint image_id);
-GL_APICALL void GL_APIENTRY glBindTexImage2DCHROMIUM(GLenum target,
-                                                     GLint imageId);
-GL_APICALL void GL_APIENTRY
-glBindTexImage2DWithInternalformatCHROMIUM(GLenum target,
-                                           GLenum internalformat,
-                                           GLint imageId);
-GL_APICALL void GL_APIENTRY glReleaseTexImage2DCHROMIUM(GLenum target,
-                                                        GLint imageId);
 #endif
 typedef GLuint(GL_APIENTRYP PFNGLCREATEIMAGECHROMIUMPROC)(
     ClientBuffer buffer,
     GLsizei width,
     GLsizei height,
     GLenum internalformat);
 typedef void (
     GL_APIENTRYP PFNGLDESTROYIMAGECHROMIUMPROC)(GLuint image_id);
-typedef void(GL_APIENTRYP PFNGLBINDTEXIMAGE2DCHROMIUMPROC)(GLenum target,
-                                                           GLint imageId);
-typedef void(GL_APIENTRYP PFNGLBINDTEXIMAGE2DWITHINTERNALFORMATCHROMIUMPROC)(
-    GLenum target,
-    GLenum internalformat,
-    GLint imageId);
-typedef void(GL_APIENTRYP PFNGLRELEASETEXIMAGE2DCHROMIUMPROC)(GLenum target,
-                                                              GLint imageId);
 #endif  /* GL_CHROMIUM_image */
 
 #ifndef GL_RGB_YCRCB_420_CHROMIUM
 #define GL_RGB_YCRCB_420_CHROMIUM 0x78FA
 #endif
 
 #ifndef GL_RGB_YCBCR_422_CHROMIUM
 #define GL_RGB_YCBCR_422_CHROMIUM 0x78FB
 #endif
 
@@ skipping 57 matching lines @@
 /* GL_CHROMIUM_get_error_query */
 #ifndef GL_CHROMIUM_get_error_query
 #define GL_CHROMIUM_get_error_query 1
 
 #ifndef GL_GET_ERROR_QUERY_CHROMIUM
 // TODO(gman): Get official numbers for this constants.
 #define GL_GET_ERROR_QUERY_CHROMIUM 0x6003
 #endif
 #endif  /* GL_CHROMIUM_get_error_query */
 
+/* GL_CHROMIUM_texture_from_image */
+#ifndef GL_CHROMIUM_texture_from_image
+#define GL_CHROMIUM_texture_from_image 1
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glBindTexImage2DCHROMIUM(
+    GLenum target, GLint imageId);
+GL_APICALL void GL_APIENTRY glReleaseTexImage2DCHROMIUM(
+    GLenum target, GLint imageId);
+#endif
+typedef void (GL_APIENTRYP PFNGLBINDTEXIMAGE2DCHROMIUMPROC) (
+    GLenum target, GLint imageId);
+typedef void (GL_APIENTRYP PFNGLRELEASETEXIMAGE2DCHROMIUMPROC) (
+    GLenum target, GLint imageId);
+#endif  /* GL_CHROMIUM_texture_from_image */
+
 /* GL_CHROMIUM_post_sub_buffer */
 #ifndef GL_CHROMIUM_post_sub_buffer
 #define GL_CHROMIUM_post_sub_buffer 1
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void GL_APIENTRY glPostSubBufferCHROMIUM(
     GLint x, GLint y, GLint width, GLint height);
 #endif
 typedef void (GL_APIENTRYP PFNGLPOSTSUBBUFFERCHROMIUMPROC) (
     GLint x, GLint y, GLint width, GLint height);
 #endif  /* GL_CHROMIUM_post_sub_buffer */
@@ skipping 999 matching lines @@
 #ifndef GL_ARB_occlusion_query
 #define GL_ARB_occlusion_query 1
 #define GL_SAMPLES_PASSED_ARB 0x8914
 #endif /* GL_ARB_occlusion_query */
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // GPU_GLES2_GL2EXTCHROMIUM_H_