Expose functions to resize and get the texture ID from offscreen GLES2 contexts

Will be paired with a WebKit-side change to expose these on WebGLES2Context.  It's safe to land this patch first, however, since it will just define functions that are not (yet) called.
TEST=none
BUG=none

Review URL: http://codereview.chromium.org/2842045

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@51819 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 11 insertions, 0 deletions

diff --git a/chrome/renderer/webgles2context_impl.cc b/chrome/renderer/webgles2context_impl.cc
index 994d750..e3d8f32 100644
--- a/chrome/renderer/webgles2context_impl.cc
+++ b/chrome/renderer/webgles2context_impl.cc
@@ -75,5 +75,13 @@ bool WebGLES2ContextImpl::swapBuffers() {
   return ggl::SwapBuffers(context_);
 }
 
+void WebGLES2ContextImpl::resizeOffscreenContent(int width, int height) {
+  ggl::ResizeOffscreenContext(context_, gfx::Size(width, height));
+}
+
+unsigned WebGLES2ContextImpl::getOffscreenContentParentTextureId() {
+  return ggl::GetParentTextureId(context_);
+}
+
 #endif  // defined(ENABLE_GPU)
 
diff --git a/chrome/renderer/webgles2context_impl.h b/chrome/renderer/webgles2context_impl.h
index 0930124..7ee3a21 100644
--- a/chrome/renderer/webgles2context_impl.h
+++ b/chrome/renderer/webgles2context_impl.h
@@ -22,6 +22,9 @@ class WebGLES2ContextImpl : public WebKit::WebGLES2Context {
   virtual bool destroy();
   virtual bool swapBuffers();
 
+  virtual void resizeOffscreenContent(int width, int height);
+  virtual unsigned getOffscreenContentParentTextureId();
+
   ggl::Context* context() { return context_; }
 
  private: