[fuzzer] Use action_max_timeout() for fuzzer Run() timeout.

renderer_fuzzer often takes longer than the default action_timeout() set
by TaskEnvironment as the Run() timeout.

Bug: 1053401, 1053479, 1053634
Change-Id: Ia4f58bf3a480c89875fe4ddce2f80e4d81818ede
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2062350
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742590}

content/test/fuzzer/BUILD.gn

@@ -18,7 +18,7 @@ source_set("fuzzer_support") {
   ]
   public_deps = [
     "//base",
-    "//base/test:test_config",
+    "//base/test:test_support",
     "//content/renderer:for_content_tests",
     "//content/shell:content_shell_lib",
     "//content/test:test_support",

content/test/fuzzer/fuzzer_support.cc

@@ -8,6 +8,7 @@
 
 #include "base/feature_list.h"
 #include "base/i18n/icu_util.h"
+#include "base/location.h"
 #include "base/test/test_timeouts.h"
 #include "gin/v8_initializer.h"
 #include "third_party/blink/public/platform/web_runtime_features.h"
@@ -26,6 +27,11 @@ constexpr gin::V8Initializer::V8SnapshotFileType kSnapshotType =
 #endif
 }
 
+RenderViewTestAdapter::RenderViewTestAdapter()
+    // Allow fuzzing test a longer Run() timeout than normal (see
+    // htps://crbug.com/1053401).
+    : increased_timeout_(FROM_HERE, TestTimeouts::action_max_timeout()) {}
+
 void RenderViewTestAdapter::SetUp() {
   RenderViewTest::SetUp();
   CreateFakeWebURLLoaderFactory();

content/test/fuzzer/fuzzer_support.h

@@ -9,6 +9,7 @@
 #include <string>
 
 #include "base/at_exit.h"
+#include "base/test/scoped_run_loop_timeout.h"
 #include "content/public/test/render_view_test.h"
 
 namespace content {
@@ -16,7 +17,7 @@ namespace content {
 // Adapter to GUnit's test case.
 class RenderViewTestAdapter : public RenderViewTest {
  public:
-  RenderViewTestAdapter() : RenderViewTest() {}
+  RenderViewTestAdapter();
 
   void TestBody() override {}
   // make SetUp visible.
@@ -29,6 +30,8 @@ class RenderViewTestAdapter : public RenderViewTest {
   using RenderViewTest::GetMainFrame;
 
  private:
+  const base::test::ScopedRunLoopTimeout increased_timeout_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewTestAdapter);
 };