Exposed support for dynamically enabling extensions in command buffer...

gpu/command_buffer/build_gles2_cmd_buffer.py

Index: gpu/command_buffer/build_gles2_cmd_buffer.py
===================================================================
--- gpu/command_buffer/build_gles2_cmd_buffer.py	(revision 68245)
+++ gpu/command_buffer/build_gles2_cmd_buffer.py	(working copy)
@@ -209,6 +209,8 @@
 GL_APICALL void         GL_APIENTRY glUnmapTexSubImage2DCHROMIUM (const void* mem);
 GL_APICALL void         GL_APIENTRY glCopyTextureToParentTextureCHROMIUM (GLidBindTexture client_child_id, GLidBindTexture client_parent_id);
 GL_APICALL void         GL_APIENTRY glResizeCHROMIUM (GLuint width, GLuint height);
+GL_APICALL const GLchar* GL_APIENTRY glGetRequestableExtensionsCHROMIUM (void);
+GL_APICALL void         GL_APIENTRY glRequestExtensionCHROMIUM (const char* extension);
 """
 
 # This is the list of all commmands that will be generated and their Id.
@@ -410,6 +412,8 @@
   'BlitFramebufferEXT':                                        446,
   'CopyTextureToParentTextureCHROMIUM':                        447,
   'ResizeCHROMIUM':                                            448,
+  'GetRequestableExtensionsCHROMIUM':                          449,
+  'RequestExtensionCHROMIUM':                                  450,
 }
 
 # This is a list of enum names and their valid values. It is used to map
@@ -1579,6 +1583,22 @@
       'extension': True,
       'chromium': True,
   },
+  'GetRequestableExtensionsCHROMIUM': {
+    'type': 'Custom',
+    'impl_func': False,
+    'immediate': False,
+    'cmd_args': 'uint32 bucket_id',
+    'extension': True,
+    'chromium': True,
+  },
+  'RequestExtensionCHROMIUM': {
+    'type': 'Custom',
+    'impl_func': False,
+    'immediate': False,
+    'cmd_args': 'uint32 bucket_id',
+    'extension': True,
+    'chromium': True,
+  },
 }