Convert //tools to use std::unique_ptr

tools/ipc_fuzzer/fuzzer/fuzzer.cc

Index: tools/ipc_fuzzer/fuzzer/fuzzer.cc
diff --git a/tools/ipc_fuzzer/fuzzer/fuzzer.cc b/tools/ipc_fuzzer/fuzzer/fuzzer.cc
index ba59021231eaa9e41d60e2a808664abcc35b0183..e03bef785e5e4d48a9b6020543f6f6f1f845373a 100644
--- a/tools/ipc_fuzzer/fuzzer/fuzzer.cc
+++ b/tools/ipc_fuzzer/fuzzer/fuzzer.cc
@@ -785,7 +785,7 @@ struct FuzzTraits<cc::RenderPassList> {
 
     size_t count = RandElementCount();
     for (size_t i = 0; i < count; ++i) {
-      scoped_ptr<cc::RenderPass> render_pass = cc::RenderPass::Create();
+      std::unique_ptr<cc::RenderPass> render_pass = cc::RenderPass::Create();
       if (!FuzzParam(render_pass.get(), fuzzer))
         return false;
       p->push_back(std::move(render_pass));
@@ -928,7 +928,7 @@ struct FuzzTraits<content::SyntheticGesturePacket> {
     if (!fuzzer->ShouldGenerate())
       return true;
 
-    scoped_ptr<content::SyntheticGestureParams> gesture_params;
+    std::unique_ptr<content::SyntheticGestureParams> gesture_params;
     switch (RandInRange(
         content::SyntheticGestureParams::SYNTHETIC_GESTURE_TYPE_MAX + 1)) {
       case content::SyntheticGestureParams::GestureType::