1 files changed, 16 insertions, 4 deletions
diff --git a/WebCore/platform/chromium/GLES2Context.h b/WebCore/platform/chromium/GLES2Context.h
index 93a343c..b72329a 100644
--- a/WebCore/platform/chromium/GLES2Context.h
+++ b/WebCore/platform/chromium/GLES2Context.h
@@ -38,20 +38,32 @@
 namespace WebCore {
 
 class GLES2ContextInternal;
+class IntSize;
 class Page;
 
 class GLES2Context : public Noncopyable {
 public:
-    // If a Page is specified then the resulting GL ES context draws directly
-    // to the window associated with the Page, otherwise an off-screen GL ES context is
-    // created.
-    static PassOwnPtr<GLES2Context> create(Page*);
+    // Creates a GL ES context that draws directly to the window associated with
+    // the Page.
+    static PassOwnPtr<GLES2Context> createOnscreen(Page*);
+
+    // Creates a GL ES context that renders offscreen, optionally as a child
+    // of the given parent if specified.
+    static PassOwnPtr<GLES2Context> createOffscreen(GLES2Context* parent);
+
     ~GLES2Context();
 
     bool makeCurrent();
     bool destroy();
     bool swapBuffers();
 
+    // Only valid for offscreen contexts.
+    void resizeOffscreenContent(const IntSize&);
+
+    // Returns the ID of the texture used for offscreen rendering in the context of the parent.
+    // This texture is accessible by the GPU page compositor.
+    unsigned getOffscreenContentParentTextureId();
+
 private:
     friend class GLES2ContextInternal;
     OwnPtr<GLES2ContextInternal> m_internal;