Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/manifest_handlers/icons_handler_unittest.cc

Index: extensions/common/manifest_handlers/icons_handler_unittest.cc
diff --git a/extensions/common/manifest_handlers/icons_handler_unittest.cc b/extensions/common/manifest_handlers/icons_handler_unittest.cc
index fa644a940ce4f434f250cc93be4c9aa0e382f8a3..7f31f2f2be2e2f6876612e35a4bd2f6601eb8d49 100644
--- a/extensions/common/manifest_handlers/icons_handler_unittest.cc
+++ b/extensions/common/manifest_handlers/icons_handler_unittest.cc
@@ -14,18 +14,19 @@ class ProductIconManifestTest : public ManifestTest {
   ProductIconManifestTest() {}
 
  protected:
-  scoped_ptr<base::DictionaryValue> CreateManifest(
+  std::unique_ptr<base::DictionaryValue> CreateManifest(
       const std::string& extra_icons) {
-    scoped_ptr<base::DictionaryValue> manifest = base::DictionaryValue::From(
-        base::test::ParseJson("{ \n"
-                              "  \"name\": \"test\", \n"
-                              "  \"version\": \"0.1\", \n"
-                              "  \"manifest_version\": 2, \n"
-                              "  \"icons\": { \n" +
-                              extra_icons + "    \"16\": \"icon1.png\", \n"
-                                            "    \"32\": \"icon2.png\" \n"
-                                            "  } \n"
-                                            "} \n"));
+    std::unique_ptr<base::DictionaryValue> manifest =
+        base::DictionaryValue::From(
+            base::test::ParseJson("{ \n"
+                                  "  \"name\": \"test\", \n"
+                                  "  \"version\": \"0.1\", \n"
+                                  "  \"manifest_version\": 2, \n"
+                                  "  \"icons\": { \n" +
+                                  extra_icons + "    \"16\": \"icon1.png\", \n"
+                                                "    \"32\": \"icon2.png\" \n"
+                                                "  } \n"
+                                                "} \n"));
     EXPECT_TRUE(manifest);
     return manifest;
   }
@@ -37,28 +38,28 @@ class ProductIconManifestTest : public ManifestTest {
 TEST_F(ProductIconManifestTest, Sizes) {
   // Too big.
   {
-    scoped_ptr<base::DictionaryValue> ext_manifest =
+    std::unique_ptr<base::DictionaryValue> ext_manifest =
         CreateManifest("\"100000\": \"icon3.png\", \n");
     ManifestData manifest(std::move(ext_manifest), "test");
     LoadAndExpectError(manifest, "Invalid key in icons: \"100000\".");
   }
   // Too small.
   {
-    scoped_ptr<base::DictionaryValue> ext_manifest =
+    std::unique_ptr<base::DictionaryValue> ext_manifest =
         CreateManifest("\"0\": \"icon3.png\", \n");
     ManifestData manifest(std::move(ext_manifest), "test");
     LoadAndExpectError(manifest, "Invalid key in icons: \"0\".");
   }
   // NaN.
   {
-    scoped_ptr<base::DictionaryValue> ext_manifest =
+    std::unique_ptr<base::DictionaryValue> ext_manifest =
         CreateManifest("\"sixteen\": \"icon3.png\", \n");
     ManifestData manifest(std::move(ext_manifest), "test");
     LoadAndExpectError(manifest, "Invalid key in icons: \"sixteen\".");
   }
   // Just right.
   {
-    scoped_ptr<base::DictionaryValue> ext_manifest =
+    std::unique_ptr<base::DictionaryValue> ext_manifest =
         CreateManifest("\"512\": \"icon3.png\", \n");
     ManifestData manifest(std::move(ext_manifest), "test");
     scoped_refptr<extensions::Extension> extension =