Delete the temporary file when generating MHTML with the extension API.

chrome/browser/extensions/extension_save_page_apitest.cc

Index: chrome/browser/extensions/extension_save_page_apitest.cc
diff --git a/chrome/browser/extensions/extension_save_page_apitest.cc b/chrome/browser/extensions/extension_save_page_apitest.cc
index 288ecac5af320ca745ed745c7f70e88e555bd04b..b01b9422e6236263ef8e412631a454f71cbe01c9 100644
--- a/chrome/browser/extensions/extension_save_page_apitest.cc
+++ b/chrome/browser/extensions/extension_save_page_apitest.cc
@@ -5,7 +5,9 @@
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "chrome/browser/extensions/extension_apitest.h"
+#include "chrome/browser/extensions/extension_save_page_api.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/test/base/ui_test_utils.h"
 #include "net/base/mock_host_resolver.h"
 
 class ExtensionSavePageApiTest : public ExtensionApiTest {
@@ -14,6 +16,7 @@ class ExtensionSavePageApiTest : public ExtensionApiTest {
   virtual void SetUpCommandLine(CommandLine* command_line) {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnableExperimentalExtensionApis);
+    command_line->AppendSwitchASCII(switches::kJavaScriptFlags, "--expose-gc");
   }
 
   virtual void SetUpInProcessBrowserTestFixture() {
@@ -32,6 +35,29 @@ class ExtensionSavePageApiTest : public ExtensionApiTest {
 #define MAYBE_SavePageAsMHTML SavePageAsMHTML
 #endif  // defined(OS_LINUX)
 
+class SavePageAsMHTMLDelegate : public SavePageAsMHTMLFunction::TestDelegate {
+ public:
+  SavePageAsMHTMLDelegate() {
+    SavePageAsMHTMLFunction::SetTestDelegate(this);
+  }
+
+  virtual ~SavePageAsMHTMLDelegate() {
+    SavePageAsMHTMLFunction::SetTestDelegate(NULL);
+  }
+
+  virtual void OnTemporaryFileCreated(const FilePath& temp_file) OVERRIDE {
+    temp_file_ = temp_file;
+  }
+
+  FilePath temp_file_;
+};
+
 IN_PROC_BROWSER_TEST_F(ExtensionSavePageApiTest, MAYBE_SavePageAsMHTML) {
+  SavePageAsMHTMLDelegate delegate;
   ASSERT_TRUE(RunExtensionTest("save_page")) << message_;
+  ASSERT_FALSE(delegate.temp_file_.empty());
+  // Flush the file message loop to make sure the delete happens.
+  ui_test_utils::RunAllPendingInMessageLoop(content::BrowserThread::FILE);
+  ASSERT_FALSE(file_util::PathExists(delegate.temp_file_));
+
 }