
Added pglGetError to PGL library. pglSwapBuffers returns false on a lost context or other non-recoverable error and pglGetError reports PGL_CONTEXT_LOST. Updated demo plugins to reset their PGL contexts on context lost. Standalone plugins cannot currently recover from lost context because they don't use PGL. Added error code to NPDeviceContext3D for lost context. TEST=none BUG=none Review URL: http://codereview.chromium.org/566021 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38039 0039d316-1c4b-4281-b951-d872f2087c98