Revert of pepper: parse context creation attrib list on the plugin side

gpu/ipc/common/gpu_param_traits_macros.h

Index: gpu/ipc/common/gpu_param_traits_macros.h
diff --git a/gpu/ipc/common/gpu_param_traits_macros.h b/gpu/ipc/common/gpu_param_traits_macros.h
index 6833ff1c136d87c6ef549752abbdbe360bf02db3..514f464c8fdde41b4cfc74ed2eefdb6ffab6b0cd 100644
--- a/gpu/ipc/common/gpu_param_traits_macros.h
+++ b/gpu/ipc/common/gpu_param_traits_macros.h
@@ -6,6 +6,7 @@
 #define GPU_IPC_COMMON_GPU_PARAM_TRAITS_MACROS_H_
 
 #include "gpu/command_buffer/common/constants.h"
+#include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/common/gpu_memory_allocation.h"
 #include "gpu/config/gpu_info.h"
 #include "gpu/gpu_export.h"
@@ -13,6 +14,7 @@
 #include "ipc/ipc_message_macros.h"
 #include "ui/gfx/ipc/geometry/gfx_param_traits.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
+#include "ui/gl/gpu_preference.h"
 #include "url/ipc/url_param_traits.h"
 
 #undef IPC_MESSAGE_EXPORT
@@ -37,6 +39,7 @@
   IPC_STRUCT_TRAITS_MEMBER(max_framerate_denominator)
 IPC_STRUCT_TRAITS_END()
 
+IPC_ENUM_TRAITS_MAX_VALUE(gl::GpuPreference, gl::GpuPreferenceLast)
 IPC_ENUM_TRAITS_MAX_VALUE(gpu::GpuStreamPriority, gpu::GpuStreamPriority::LAST)
 IPC_ENUM_TRAITS_MAX_VALUE(gpu::MemoryAllocation::PriorityCutoff,
                           gpu::MemoryAllocation::CUTOFF_LAST)
@@ -48,6 +51,8 @@
 IPC_ENUM_TRAITS_MIN_MAX_VALUE(gpu::VideoCodecProfile,
                               gpu::VIDEO_CODEC_PROFILE_MIN,
                               gpu::VIDEO_CODEC_PROFILE_MAX)
+IPC_ENUM_TRAITS_MAX_VALUE(gpu::gles2::ContextType,
+                          gpu::gles2::CONTEXT_TYPE_LAST)
 
 IPC_STRUCT_TRAITS_BEGIN(gpu::DxDiagNode)
   IPC_STRUCT_TRAITS_MEMBER(values)
@@ -108,5 +113,23 @@
   IPC_STRUCT_TRAITS_MEMBER(priority_cutoff_when_visible)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(gpu::gles2::ContextCreationAttribHelper)
+  IPC_STRUCT_TRAITS_MEMBER(offscreen_framebuffer_size)
+  IPC_STRUCT_TRAITS_MEMBER(gpu_preference)
+  IPC_STRUCT_TRAITS_MEMBER(alpha_size)
+  IPC_STRUCT_TRAITS_MEMBER(blue_size)
+  IPC_STRUCT_TRAITS_MEMBER(green_size)
+  IPC_STRUCT_TRAITS_MEMBER(red_size)
+  IPC_STRUCT_TRAITS_MEMBER(depth_size)
+  IPC_STRUCT_TRAITS_MEMBER(stencil_size)
+  IPC_STRUCT_TRAITS_MEMBER(samples)
+  IPC_STRUCT_TRAITS_MEMBER(sample_buffers)
+  IPC_STRUCT_TRAITS_MEMBER(buffer_preserved)
+  IPC_STRUCT_TRAITS_MEMBER(bind_generates_resource)
+  IPC_STRUCT_TRAITS_MEMBER(fail_if_major_perf_caveat)
+  IPC_STRUCT_TRAITS_MEMBER(lose_context_when_out_of_memory)
+  IPC_STRUCT_TRAITS_MEMBER(context_type)
+IPC_STRUCT_TRAITS_END()
+
 
 #endif  // GPU_IPC_COMMON_GPU_PARAM_TRAITS_MACROS_H_