Add a mimeHandler extension API.

This adds the mimeHandler extension API, which is a simplified version
of the streamsPrivateApi. Unlike the streamsPrivateApi, mimeHandler only
allows access to streams from RenderFrames within MimeHandlerViewGuests,
and in particular only allows access to the stream being handled by that
MimeHandlerViewGuest instance. This removes the need for an event to be
dispatched to the background page and a user-exposed view_id.

BUG=439867

Review URL: https://codereview.chromium.org/797183005

Cr-Commit-Position: refs/heads/master@{#312728}

1 files changed, 30 insertions, 9 deletions

diff --git a/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_browsertest.cc b/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
index bfb3e7c..d4c33d6 100644
--- a/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
+++ b/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_browsertest.cc
@@ -28,26 +28,47 @@ class MimeHandlerViewTest : public ExtensionApiTest {
 
     return extension;
   }
+
+  void RunTest(const std::string& path) {
+    const extensions::Extension* extension = LoadTestExtension();
+    ASSERT_TRUE(extension);
+
+    extensions::ResultCatcher catcher;
+
+    GURL extension_url("chrome-extension://" + std::string(kExtensionId) + "/" +
+                       path);
+    ui_test_utils::NavigateToURL(browser(), extension_url);
+
+    if (!catcher.GetNextResult())
+      FAIL() << catcher.message();
+  }
 };
 
 // Not working on Windows because of crbug.com/443466.
 #if defined(OS_WIN)
 #define MAYBE_PostMessage DISABLED_PostMessage
+#define MAYBE_Basic DISABLED_Basic
+#define MAYBE_Embedded DISABLED_Embedded
+#define MAYBE_Abort DISABLED_Abort
 #else
 #define MAYBE_PostMessage PostMessage
+#define MAYBE_Basic Basic
+#define MAYBE_Embedded Embedded
+#define MAYBE_Abort Abort
 #endif
 
 IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, MAYBE_PostMessage) {
-  const extensions::Extension* extension = LoadTestExtension();
-  ASSERT_TRUE(extension);
+  RunTest("test_postmessage.html");
+}
 
-  extensions::ResultCatcher catcher;
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, MAYBE_Basic) {
+  RunTest("testBasic.csv");
+}
 
-  GURL extension_url("chrome-extension://" +
-                     std::string(kExtensionId) +
-                     "/test_postmessage.html");
-  ui_test_utils::NavigateToURL(browser(), extension_url);
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, MAYBE_Embedded) {
+  RunTest("test_embedded.html");
+}
 
-  if (!catcher.GetNextResult())
-    FAIL() << catcher.message();
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, MAYBE_Abort) {
+  RunTest("testAbort.csv");
 }