During image destroy, delete textures only if we have a GL context.

ui/gl/gl_image_glx.cc

Index: ui/gl/gl_image_glx.cc
diff --git a/ui/gl/gl_image_glx.cc b/ui/gl/gl_image_glx.cc
index 4b7e883781cd8160e6bc6c49d38be238088fc6bd..2cf1737f47dfa7bbc989a1d3b749b2dc53f14d4d 100644
--- a/ui/gl/gl_image_glx.cc
+++ b/ui/gl/gl_image_glx.cc
@@ -49,7 +49,10 @@ GLImageGLX::GLImageGLX(gfx::PluginWindowHandle window)
       pixmap_(0),
       glx_pixmap_(0) {}
 
-GLImageGLX::~GLImageGLX() { Destroy(); }
+GLImageGLX::~GLImageGLX() {
+  DCHECK_EQ(0u, glx_pixmap_);
+  DCHECK_EQ(0u, pixmap_);

[reveman, 2014/05/31 05:05:06]

this can fail. see why below.

[sohanjg, 2014/06/02 13:59:42]

Done.

+}
 
 bool GLImageGLX::Initialize() {
   if (!GLSurfaceGLX::IsTextureFromPixmapSupported()) {
@@ -126,7 +129,7 @@ bool GLImageGLX::Initialize() {
   return true;
 }
 
-void GLImageGLX::Destroy() {
+void GLImageGLX::Destroy(bool have_context) {
   if (glx_pixmap_) {
     glXDestroyGLXPixmap(display_, glx_pixmap_);
     glx_pixmap_ = 0;