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..bc8eed5cef5a82d1842e3f5aec9c88fb4ab0d787 100644
--- a/gpu/GLES2/gl2extchromium.h
+++ b/gpu/GLES2/gl2extchromium.h
@@ -94,6 +94,35 @@ 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

[no sievers, 2013/05/08 21:54:20]

Should this be renamed now that GpuMemoryBuffer is a concept entirely internal
to the GL implementation?

The new GL APIs only uses the term 'Image'.
How about GL_CHROMIUM_map_image?

+
+#ifndef GL_IMAGE_ROWBYTES
+#define GL_IMAGE_ROWBYTES 0x78F0
+#endif
+
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL GLuint GL_APIENTRY glCreateImageCHROMIUM(
+    GLsizei width, GLsizei height);
+GL_APICALL void GL_APIENTRY glDestroyImageCHROMIUM(GLuint image_id);
+GL_APICALL void GL_APIENTRY glGetImageParameterivCHROMIUM(
+    GLuint image_id, GLenum pname, GLint* params);
+GL_APICALL void* GL_APIENTRY glMapImageCHROMIUM(GLuint image_id, GLenum access);
+GL_APICALL GLboolean GL_APIENTRY glUnmapImageCHROMIUM(GLuint image_id);
+#endif
+typedef GLuint (
+    GL_APIENTRYP PFNGLCREATEIMAGECHROMIUMPROC) (GLsizei width, GLsizei height);
+typedef void (
+    GL_APIENTRYP PFNGLDESTROYIMAGECHROMIUMPROC) (GLuint image_id);
+typedef void (
+    GL_APIENTRYP PFNGLGETIMAGEPARAMETERIVCHROMIUMPROC) (
+    GLuint image_id, GLenum pname, GLint* params);
+typedef void* (GL_APIENTRYP PFNGLMAPIMAGECHROMIUMPROC) (
+    GLuint image_id, GLenum access);
+typedef GLboolean (GL_APIENTRYP PFNGLUNMAPIMAGECHROMIUMPROC) (GLuint image_id);
+#endif  /* GL_CHROMIUM_gpu_memory_buffer */
+
 /* GL_CHROMIUM_map_sub */
 #ifndef GL_CHROMIUM_map_sub
 #define GL_CHROMIUM_map_sub 1