gpu: Remove Create/DeleteImage IPC by adding an X11_PIXMAP_BUFFER GpuMemoryBuffer type.

ui/gl/gl_image_glx.h

Index: ui/gl/gl_image_glx.h
diff --git a/ui/gl/gl_image_glx.h b/ui/gl/gl_image_glx.h
index d94520200d882e9c8345310c92c72375589910f1..8f900b66014371fdf7bfe23294c5e7fc2b79599b 100644
--- a/ui/gl/gl_image_glx.h
+++ b/ui/gl/gl_image_glx.h
@@ -14,9 +14,9 @@ namespace gfx {
 
 class GL_EXPORT GLImageGLX : public GLImage {
  public:
-  explicit GLImageGLX(gfx::PluginWindowHandle window);
+  GLImageGLX(gfx::Size size, unsigned internalformat);
 
-  virtual bool Initialize();
+  bool Initialize(gfx::GpuMemoryBufferHandle buffer);
 
   // Overridden from GLImage:
   virtual void Destroy() OVERRIDE;
@@ -32,11 +32,9 @@ class GL_EXPORT GLImageGLX : public GLImage {
   virtual ~GLImageGLX();
 
  private:
-  XDisplay* display_;
-  gfx::PluginWindowHandle window_;
-  XID pixmap_;
   XID glx_pixmap_;
   gfx::Size size_;
+  unsigned internalformat_;
 
   DISALLOW_COPY_AND_ASSIGN(GLImageGLX);
 };