Add experiments info to crash dumps.

chrome/app/breakpad_unittest_win.cc

+// 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.
+
+#include <vector>
+
+#include "base/stringprintf.h"
+#include "breakpad/src/client/windows/common/ipc_protocol.h"
+#include "chrome/app/breakpad_field_trial_win.h"
+#include "chrome/app/breakpad_win.h"
+#include "chrome/common/child_process_logging.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using breakpad_win::g_custom_entries;
+using breakpad_win::g_experiment_chunks_offset;
+using breakpad_win::g_num_of_experiments_offset;
+
+class ChromeAppBreakpadTest : public testing::Test {
+ public:
+  ChromeAppBreakpadTest() {
+    testing::InitCustomInfoEntries();
+  }
+
+ protected:
+  typedef std::vector<string16> Experiments;
+  void ValidateExperimentChunks(const Experiments& experiments) {
+    testing::SetExperimentList(experiments);
+    EXPECT_STREQ(base::StringPrintf(L"%d", experiments.size()).c_str(),
+                 (*g_custom_entries)[g_num_of_experiments_offset].value);
+    // We make a copy of the array that we empty as we find the experiments.
+    Experiments experiments_left(experiments);
+    for (int i = 0; i < kMaxReportedExperimentChunks; ++i) {
+      EXPECT_STREQ(base::StringPrintf(L"experiment-chunk-%i", i + 1).c_str(),
+                   (*g_custom_entries)[g_experiment_chunks_offset + i].name);
+      if (experiments_left.empty()) {
+        // All other slots should be empty.
+        EXPECT_STREQ(
+            L"", (*g_custom_entries)[g_experiment_chunks_offset + i].value);
+      } else {
+        // We can't guarantee the order, so we must search for them all.
+        Experiments::const_iterator experiment = experiments_left.begin();
+        while (experiment != experiments_left.end()) {
+          if (wcsstr((*g_custom_entries)[g_experiment_chunks_offset + i].value,
+                     experiment->c_str())) {
+            experiment = experiments_left.erase(experiment);
+          } else {
+            ++experiment;
+          }
+        }
+      }
+    }
+    EXPECT_TRUE(experiments_left.empty());
+  }
+
+ private:
+  static const wchar_t* kNumExperiments;
+  static const size_t kNumExperimentsSize;
+};
+
+const wchar_t* ChromeAppBreakpadTest::kNumExperiments = L"num-experiments";
+const size_t ChromeAppBreakpadTest::kNumExperimentsSize =
+    wcslen(ChromeAppBreakpadTest::kNumExperiments);
+
+TEST_F(ChromeAppBreakpadTest, ExperimentList) {
+  Experiments experiments;
+  experiments.push_back(L"ABCDE-12345");
+  ValidateExperimentChunks(experiments);
+
+  experiments.push_back(L"There-You Are");
+  ValidateExperimentChunks(experiments);
+
+  experiments.push_back(L"Peter-Sellers");
+  ValidateExperimentChunks(experiments);
+
+  experiments.push_back(L"Eat me-Drink me");
+  ValidateExperimentChunks(experiments);
+}