Take GL version and extensions correctly into account when binding functions

ui/gl/gl_implementation_android.cc

Index: ui/gl/gl_implementation_android.cc
diff --git a/ui/gl/gl_implementation_android.cc b/ui/gl/gl_implementation_android.cc
index 63528ae078acb20072fef60c4c231c627490aa47..0b01133294345166bd37897253cf38ec6eefb43e 100644
--- a/ui/gl/gl_implementation_android.cc
+++ b/ui/gl/gl_implementation_android.cc
@@ -9,6 +9,7 @@
 #include "base/native_library.h"
 #include "base/path_service.h"
 #include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_context_stub_with_extensions.h"
 #include "ui/gl/gl_egl_api_implementation.h"
 #include "ui/gl/gl_gl_api_implementation.h"
 #include "ui/gl/gl_implementation.h"
@@ -47,7 +48,7 @@ void GetAllowedGLImplementations(std::vector<GLImplementation>* impls) {
   impls->push_back(kGLImplementationEGLGLES2);
 }
 
-bool InitializeGLBindings(GLImplementation implementation) {
+bool InitializeStaticGLBindings(GLImplementation implementation) {
   // Prevent reinitialization with a different implementation. Once the gpu
   // unit tests have initialized with kGLImplementationMock, we don't want to
   // later switch to another GL implementation.
@@ -81,8 +82,8 @@ bool InitializeGLBindings(GLImplementation implementation) {
       AddGLNativeLibrary(gles_library);
       SetGLImplementation(kGLImplementationEGLGLES2);
 
-      InitializeGLBindingsGL();
-      InitializeGLBindingsEGL();
+      InitializeStaticGLBindingsGL();
+      InitializeStaticGLBindingsEGL();
 
       // These two functions take single precision float rather than double
       // precision float parameters in GLES.
@@ -93,26 +94,32 @@ bool InitializeGLBindings(GLImplementation implementation) {
     case kGLImplementationMockGL: {
       SetGLGetProcAddressProc(GetMockGLProcAddress);
       SetGLImplementation(kGLImplementationMockGL);
-      InitializeGLBindingsGL();
+      InitializeStaticGLBindingsGL();
       break;
     }
     default:
-      NOTIMPLEMENTED() << "InitializeGLBindings on Android";
+      NOTIMPLEMENTED() << "InitializeStaticGLBindings on Android";
       return false;
   }
 
   return true;
 }
 
-bool InitializeGLExtensionBindings(GLImplementation implementation,
-                                   GLContext* context) {
+bool InitializeDynamicGLBindings(GLImplementation implementation,
+                                 GLContext* context) {
   switch (implementation) {
     case kGLImplementationEGLGLES2:
-      InitializeGLExtensionBindingsGL(context);
-      InitializeGLExtensionBindingsEGL(context);
+      InitializeDynamicGLBindingsGL(context);
+      InitializeDynamicGLBindingsEGL(context);
       break;
     case kGLImplementationMockGL:
-      InitializeGLExtensionBindingsGL(context);
+      if (!context) {
+        scoped_refptr<GLContextStubWithExtensions> mock_context(
+            new GLContextStubWithExtensions());
+        mock_context->SetGLVersionString("opengl es 3.0");
+        InitializeDynamicGLBindingsGL(mock_context.get());
+      } else
+        InitializeDynamicGLBindingsGL(context);
       break;
     default:
       return false;