GPU client side changes for GpuMemoryBuffers

gpu/GLES2/gl2extchromium.h

Index: gpu/GLES2/gl2extchromium.h
diff --git a/gpu/GLES2/gl2extchromium.h b/gpu/GLES2/gl2extchromium.h
index 9193467c4e82e07dc2a31106d46be79e916a7aad..2c95f072a47a42f3f1ef43e1036b1a94b900b895 100644
--- a/gpu/GLES2/gl2extchromium.h
+++ b/gpu/GLES2/gl2extchromium.h
@@ -94,6 +94,27 @@ typedef GLboolean (GL_APIENTRY PFNGLUNMAPBUFFERCHROMIUM) (GLuint target);
 #endif
 #endif  /* GL_CHROMIUM_pixel_transfer_buffer_object */
 
+/* GL_CHROMIUM_gpu_memory_buffer */
+#ifndef GL_CHROMIUM_gpu_memory_buffer
+#define GL_CHROMIUM_gpu_memory_buffer 1
+
+#ifndef GL_IMAGE_BUFFER_CHROMIUM
+#define GL_IMAGE_BUFFER_CHROMIUM 0x78F0
+#endif
+
+#ifndef GL_IMAGE_BUFFER_BINDING_CHROMIUM
+#define GL_IMAGE_BUFFER_BINDING_CHROMIUM 0x78F1
+#endif
+
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glCreateGpuMemoryBuffer2DCHROMIUM(
+    GLuint image_id, GLsizei width, GLsizei height);
+#endif
+typedef void (
+    GL_APIENTRYP PFNGLCREATEGPUMEMORYBUFFER2DCHROMIUMPROC) (
+    GLuint image_id, GLsizei width, GLsizei height);
+#endif  /* GL_CHROMIUM_gpu_memory_buffer */
+
 /* GL_CHROMIUM_map_sub */
 #ifndef GL_CHROMIUM_map_sub
 #define GL_CHROMIUM_map_sub 1