Introduction of parameter to readBackFramebuffer set of APIs to allow reading from the currently ...

content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc

Index: content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc
===================================================================
--- content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc	(revision 96380)
+++ content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc	(working copy)
@@ -295,9 +295,10 @@
   if (mustRestoreFBO) {
     gl_->BindFramebuffer(GL_FRAMEBUFFER, buffer);
   }
-   gl_->ReadPixels(0, 0, width, height,
-                   GL_RGBA, GL_UNSIGNED_BYTE, pixels);
 
+  gl_->ReadPixels(0, 0, width, height,
+                  GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
   // Swizzle red and blue channels
   // TODO(kbr): expose GL_BGRA as extension
   for (size_t i = 0; i < buffer_size; i += 4) {
@@ -319,8 +320,11 @@
 
 bool WebGraphicsContext3DCommandBufferImpl::readBackFramebuffer(
     unsigned char* pixels,
-    size_t buffer_size) {
-  return readBackFramebuffer(pixels, buffer_size, 0, width(), height());
+    size_t buffer_size, bool bindDefaultFramebuffer) {
+  if (bindDefaultFramebuffer)
+    return readBackFramebuffer(pixels, buffer_size, 0, width(), height());
+
+  return readBackFramebuffer(pixels, buffer_size, bound_fbo_, width(), height());
 }
 
 void WebGraphicsContext3DCommandBufferImpl::synthesizeGLError(