Increment |frame_token|'s in ClusterFuzz CompositorFrames

This change adds FrameTokenGenerators to CompositorFrame builders in
ClusterFuzz. During normal operation subsequent CompositorFrames are
expected to have incremented |frame_token|'s, this change makes fuzzed
frames follow that behavior.

Bug: 997147
Change-Id: Ib41ac8318bb2c14edfd0d9b51061f3fbde490df4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1787992Reviewed-by: kylechar <kylechar@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Commit-Queue: Nathan Zabriskie <nazabris@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#695679}

components/viz/service/compositor_frame_fuzzer/compositor_frame_fuzzer_util.cc

@@ -153,12 +153,14 @@ class FuzzedCompositorFrameBuilder {
 
 FuzzedData FuzzedCompositorFrameBuilder::Build(
     const proto::RenderPass& render_pass_spec) {
+  static FrameTokenGenerator next_frame_token;
+
   data_.frame.metadata.begin_frame_ack.source_id =
       BeginFrameArgs::kManualSourceId;
   data_.frame.metadata.begin_frame_ack.sequence_number =
       BeginFrameArgs::kStartingFrameNumber;
   data_.frame.metadata.begin_frame_ack.has_damage = true;
-  data_.frame.metadata.frame_token = 1;
+  data_.frame.metadata.frame_token = ++next_frame_token;
   data_.frame.metadata.device_scale_factor = 1;
   data_.frame.metadata.local_surface_id_allocation_time =
       base::TimeTicks::Now();

components/viz/service/compositor_frame_fuzzer/fuzzer_browser_process.cc

@@ -113,7 +113,7 @@ CompositorFrame FuzzerBrowserProcess::BuildBrowserUICompositorFrame(
     SurfaceId renderer_surface_id) {
   CompositorFrame frame;
 
-  frame.metadata.frame_token = 1;
+  frame.metadata.frame_token = ++next_frame_token_;
   frame.metadata.begin_frame_ack.source_id = BeginFrameArgs::kManualSourceId;
   frame.metadata.begin_frame_ack.sequence_number =
       BeginFrameArgs::kStartingFrameNumber;

components/viz/service/compositor_frame_fuzzer/fuzzer_browser_process.h

@@ -58,6 +58,8 @@ class FuzzerBrowserProcess {
 
   ParentLocalSurfaceIdAllocator lsi_allocator_;
 
+  FrameTokenGenerator next_frame_token_;
+
   DISALLOW_COPY_AND_ASSIGN(FuzzerBrowserProcess);
 };