gpu: Move image creation part of GpuMemoryBufferFactory interface to gpu namespace.

content/common/gpu/gpu_memory_buffer_factory_x11.cc

Index: content/common/gpu/gpu_memory_buffer_factory_x11.cc
diff --git a/content/common/gpu/gpu_memory_buffer_factory_x11.cc b/content/common/gpu/gpu_memory_buffer_factory_x11.cc
index 2131eb161dc0451e8a0bf998aec70416d91d940f..0f713923c0cd5a24b81437d7239a781a2576481e 100644
--- a/content/common/gpu/gpu_memory_buffer_factory_x11.cc
+++ b/content/common/gpu/gpu_memory_buffer_factory_x11.cc
@@ -6,13 +6,15 @@
 
 #include "base/logging.h"
 #include "content/common/gpu/gpu_memory_buffer_factory_x11_pixmap.h"
+#include "gpu/command_buffer/service/image_factory.h"
 #include "ui/gl/gl_image.h"
 #include "ui/gl/gl_image_shared_memory.h"
 
 namespace content {
 namespace {
 
-class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory {
+class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory,
+                                   public gpu::ImageFactory {
  public:
   // Overridden from GpuMemoryBufferFactory:
   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
@@ -41,6 +43,9 @@ class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory {
         break;
     }
   }
+  virtual gpu::ImageFactory* AsImageFactory() override { return this; }
+
+  // Overridden from gpu::GpuMemoryBufferFactory:
   virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,