Make GL_CHROMIUM_consistent_uniform_locations slighty more robust

gpu/GLES2/extensions/CHROMIUM/CHROMIUM_consistent_uniform_locations.txt

 Name
 
     CHROMIUM_consistent_uniform_locations
 
 Name Strings
 
     GL_CHROMIUM_consistent_uniform_locations
 
 Version
 
     Last Modifed Date: June 17, 2012
 
 Dependencies
 
     OpenGL ES 2.0 is required.
 
 Overview
 
     This extension guarantees uniforms always have the same locations.
 
     This allows the client program to know the locations of uniforms
-    without having to compile the shaders, link the program and query
-    the locations and therefore have no blocking calls when initializing
-    programs.
+    without having to wait for shaders to compile or GLSL programs to
+    link to query the locations and therefore have no blocking calls
+    when initializing programs.
 
     To be forward compatible the locations are provided through the
-    function GetUniformLocationsCHROMIUM but they can be provided
-    even before linking a program and therefore do not have to wait
-    for compile or link completion to return results.
+    function GetUniformLocationsCHROMIUM. LinkProgram must be called
+    before calling GetUniformLocationsCHROMIUM.
 
 Issues
 
     If a uniform is unused in the actual program it may be optimized out
     by the GL driver. In this case the locations will be wrong. You
     must provide a list of only the used uniforms.
 
 New Tokens
 
     None
 
 New Procedures and Functions
 
-    void GetUniformLocationsCHROMIUM (const GLUniformDefinitionCHROMIUM* uniforms,
+    void GetUniformLocationsCHROMIUM (GLuint program,
+                                      const GLUniformDefinitionCHROMIUM* uniforms,
                                       GLsizei count, GLsizei max_locations,
                                       GLint* locations);
 
     Provides the locations of uniforms assuming the list of uniforms provided
     matches the uniforms actually used in the corresponding program.
 
     <uniforms> is an array of uniforms.  <count> is the number of uniforms in the
     array.  <max_locations> is the maximum number of locations to write to
     <locations>.  <locations> is an array to receive the uniform locations.
 
@@ skipping 23 matching lines @@
 
     None.
 
 New State
 
     None.
 
 Revision History
 
     7/17/2012    Documented the extension
+    7/19/2012    Added <program> argument.
+