[Command Buffer] enable/disable FRAMEBUFFER_SRGB only when sRGB image is active

gpu/command_buffer/service/gles2_cmd_copy_tex_image.cc

Index: gpu/command_buffer/service/gles2_cmd_copy_tex_image.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_copy_tex_image.cc b/gpu/command_buffer/service/gles2_cmd_copy_tex_image.cc
index b26d3353aaefac554784cbe5772ed6170c8dba29..dd7a5807e0fa34edd348601700f5ab14a6fe140f 100644
--- a/gpu/command_buffer/service/gles2_cmd_copy_tex_image.cc
+++ b/gpu/command_buffer/service/gles2_cmd_copy_tex_image.cc
@@ -40,7 +40,7 @@ void CopyTexImageResourceManager::Initialize(
 
   blit_program_ = glCreateProgram();
 
-  // Compile the fragment shader
+  // Compile the vertex shader
   const char* vs_source =
       "#version 150\n"
       "out vec2 v_texcoord;\n"
@@ -68,7 +68,7 @@ void CopyTexImageResourceManager::Initialize(
   glAttachShader(blit_program_, vs);
   glDeleteShader(vs);
 
-  // Compile the vertex shader
+  // Compile the fragment shader
   const char* fs_source =
       "#version 150\n"
       "uniform sampler2D u_source_texture;\n"