Bug 761849 - D[OGL] Don't convert video texture to RGBA for better performance on desktoop. r=joe

gfx/gl/GLContext.cpp

@@ -2263,7 +2263,6 @@ GLContext::UploadSurfaceToTexture(gfxASurface *aSurface,
     }
 
     GLenum format;
-    GLenum internalformat;
     GLenum type;
     PRInt32 pixelSize = gfxASurface::BytePerPixelFromFormat(imageSurface->Format());
     ShaderProgramType shader;
@@ -2301,8 +2300,6 @@ GLContext::UploadSurfaceToTexture(gfxASurface *aSurface,
 
     PRInt32 stride = imageSurface->Stride();
 
-    internalformat = mIsGLES2 ? format : LOCAL_GL_RGBA;
-
     nsIntRegionRectIterator iter(paintRegion);
     const nsIntRect *iterRect;
 
@@ -2334,7 +2331,7 @@ GLContext::UploadSurfaceToTexture(gfxASurface *aSurface,
         } else {
             TexImage2D(LOCAL_GL_TEXTURE_2D,
                        0,
-                       internalformat,
+                       format,
                        iterRect->width,
                        iterRect->height,
                        stride,