Plumb cc::LatencyInfo through command buffer and output surface

content/common/gpu/gpu_messages.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include <string>
 #include <vector>
 
 #include "base/shared_memory.h"
+#include "cc/debug/latency_info.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/gpu_memory_allocation.h"
 #include "content/common/gpu/gpu_memory_uma_stats.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/common/gpu/gpu_rendering_stats.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/gpu_info.h"
 #include "content/public/common/gpu_memory_stats.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/common/constants.h"
@@ skipping 21 matching lines @@
 IPC_STRUCT_END()
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params)
   IPC_STRUCT_MEMBER(int32, surface_id)
   IPC_STRUCT_MEMBER(uint64, surface_handle)
   IPC_STRUCT_MEMBER(int32, route_id)
   IPC_STRUCT_MEMBER(std::string, mailbox_name)
   IPC_STRUCT_MEMBER(gfx::Size, size)
+  IPC_STRUCT_MEMBER(cc::LatencyInfo, latency_info)
 IPC_STRUCT_END()
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT
 
 IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params)
   IPC_STRUCT_MEMBER(int32, surface_id)
   IPC_STRUCT_MEMBER(uint64, surface_handle)
   IPC_STRUCT_MEMBER(int32, route_id)
   IPC_STRUCT_MEMBER(int, x)
   IPC_STRUCT_MEMBER(int, y)
   IPC_STRUCT_MEMBER(int, width)
   IPC_STRUCT_MEMBER(int, height)
   IPC_STRUCT_MEMBER(std::string, mailbox_name)
   IPC_STRUCT_MEMBER(gfx::Size, surface_size)
+  IPC_STRUCT_MEMBER(cc::LatencyInfo, latency_info)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfaceRelease_Params)
   IPC_STRUCT_MEMBER(int32, surface_id)
   IPC_STRUCT_MEMBER(int32, route_id)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(AcceleratedSurfaceMsg_BufferPresented_Params)
   IPC_STRUCT_MEMBER(std::string, mailbox_name)
   IPC_STRUCT_MEMBER(uint32, sync_point)
@@ skipping 277 matching lines @@
                      std::string /* header */,
                      std::string /* message */)
 
 // Resize the window that is being drawn into. It's important that this
 // resize be synchronized with the swapping of the front and back buffers.
 IPC_MESSAGE_CONTROL3(GpuHostMsg_ResizeView,
                      int32 /* surface_id */,
                      int32 /* route_id */,
                      gfx::Size /* size */)
 
+// Tells the browser that a frame with the specific latency info was drawn to
+// the screen
+IPC_MESSAGE_CONTROL1(GpuHostMsg_FrameDrawn,
+                     cc::LatencyInfo /* latency_info */)
+
 // Same as above with a rect of the part of the surface that changed.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_AcceleratedSurfaceBuffersSwapped,
                      GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params)
 
 // This message notifies the browser process that the renderer
 // swapped a portion of the buffers associated with the given "window", which
 // should cause the browser to redraw the compositor's contents.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_AcceleratedSurfacePostSubBuffer,
                      GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params)
 
@@ skipping 121 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED0_1(GpuCommandBufferMsg_GetStateFast,
                            gpu::CommandBuffer::State /* state */)
 
 // Asynchronously synchronize the put and get offsets of both processes.
 // Caller passes its current put offset. Current state (including get offset)
 // is returned in shared memory.
 IPC_MESSAGE_ROUTED2(GpuCommandBufferMsg_AsyncFlush,
                     int32 /* put_offset */,
                     uint32 /* flush_count */)
 
+// Sends information about the latency of the current frame to the GPU
+// process.
+IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_SetLatencyInfo,
+                    cc::LatencyInfo /* latency_info */)
+
 // Asynchronously process any commands known to the GPU process. This is only
 // used in the event that a channel is unscheduled and needs to be flushed
 // again to process any commands issued subsequent to unscheduling. The GPU
 // process actually sends it (deferred) to itself.
 IPC_MESSAGE_ROUTED0(GpuCommandBufferMsg_Rescheduled)
 
 // Sent by the GPU process to display messages in the console.
 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_ConsoleMsg,
                     GPUCommandBufferConsoleMessage /* msg */)
 
@@ skipping 139 matching lines @@
 
 // Confirm decoder has been flushed.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_FlushDone)
 
 // Confirm decoder has been reset.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_ResetDone)
 
 // Video decoder has encountered an error.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_ErrorNotification,
                     uint32) /* Error ID */