Remove remaining traces of CreateGpuMemoryBufferImageCHROMIUM

gpu/GLES2/gl2extchromium.h

Index: gpu/GLES2/gl2extchromium.h
diff --git a/gpu/GLES2/gl2extchromium.h b/gpu/GLES2/gl2extchromium.h
index db7cd632a0af348261623e8142e0a184ea1bce4e..e38949b5757ec32233014a29090d457676255dfc 100644
--- a/gpu/GLES2/gl2extchromium.h
+++ b/gpu/GLES2/gl2extchromium.h
@@ -94,14 +94,6 @@ typedef void (
     GL_APIENTRYP PFNGLDESTROYIMAGECHROMIUMPROC)(GLuint image_id);
 #endif  /* GL_CHROMIUM_image */
 
-  /* GL_CHROMIUM_gpu_memory_buffer_image */
-#ifndef GL_CHROMIUM_gpu_memory_buffer_image
-#define GL_CHROMIUM_gpu_memory_buffer_image 1
-
-#ifndef GL_READ_WRITE_CHROMIUM
-#define GL_READ_WRITE_CHROMIUM 0x78F2
-#endif
-
 #ifndef GL_RGB_YCRCB_420_CHROMIUM
 #define GL_RGB_YCRCB_420_CHROMIUM 0x78FA
 #endif
@@ -114,20 +106,6 @@ typedef void (
 #define GL_RGB_YCBCR_420V_CHROMIUM 0x78FC
 #endif
 
-#ifdef GL_GLEXT_PROTOTYPES
-GL_APICALL GLuint GL_APIENTRY glCreateGpuMemoryBufferImageCHROMIUM(
-    GLsizei width,
-    GLsizei height,
-    GLenum internalformat,
-    GLenum usage);
-#endif
-typedef GLuint(GL_APIENTRYP PFNGLCREATEGPUMEMORYBUFFERIMAGECHROMIUMPROC)(
-    GLsizei width,
-    GLsizei height,
-    GLenum internalformat,
-    GLenum usage);
-#endif  /* GL_CHROMIUM_gpu_memory_buffer_image */
-
 /* GL_CHROMIUM_deschedule */
 #ifndef GL_CHROMIUM_deschedule
 #define GL_CHROMIUM_deschedule 1