drive: Use "/drive/root" namespace and fix Files app and tests.

chrome/browser/chromeos/drive/search_metadata_unittest.cc

Index: chrome/browser/chromeos/drive/search_metadata_unittest.cc
diff --git a/chrome/browser/chromeos/drive/search_metadata_unittest.cc b/chrome/browser/chromeos/drive/search_metadata_unittest.cc
index 1be4c459efc85f01de69bbecde5971a9d6b7c338..2a153fa79500f396b2186803aab667acc43326da 100644
--- a/chrome/browser/chromeos/drive/search_metadata_unittest.cc
+++ b/chrome/browser/chromeos/drive/search_metadata_unittest.cc
@@ -129,7 +129,7 @@ TEST_F(SearchMetadataTest, SearchMetadata_RegularFile) {
   EXPECT_EQ(DRIVE_FILE_OK, error);
   ASSERT_EQ(1U, result->size());
   EXPECT_EQ(base::FilePath::FromUTF8Unsafe(
-      "drive/Directory 1/SubDirectory File 1.txt"), result->at(0).path);
+      "drive/root/Directory 1/SubDirectory File 1.txt"), result->at(0).path);
 }
 
 // This test checks if |FindAndHighlight| does case-insensitive search.
@@ -149,7 +149,7 @@ TEST_F(SearchMetadataTest, SearchMetadata_CaseInsensitiveSearch) {
   EXPECT_EQ(DRIVE_FILE_OK, error);
   ASSERT_EQ(1U, result->size());
   EXPECT_EQ(base::FilePath::FromUTF8Unsafe(
-      "drive/Directory 1/SubDirectory File 1.txt"), result->at(0).path);
+      "drive/root/Directory 1/SubDirectory File 1.txt"), result->at(0).path);
 }
 
 TEST_F(SearchMetadataTest, SearchMetadata_RegularFiles) {
@@ -175,10 +175,10 @@ TEST_F(SearchMetadataTest, SearchMetadata_RegularFiles) {
   // All base names should contain "File".
   EXPECT_EQ(
       base::FilePath::FromUTF8Unsafe(
-          "drive/Slash \xE2\x88\x95 in directory/Slash SubDir File.txt"),
+          "drive/root/Slash \xE2\x88\x95 in directory/Slash SubDir File.txt"),
       result->at(0).path);
   EXPECT_EQ(base::FilePath::FromUTF8Unsafe(
-      "drive/Directory 1/SubDirectory File 1.txt"), result->at(1).path);
+      "drive/root/Directory 1/SubDirectory File 1.txt"), result->at(1).path);
 }
 
 TEST_F(SearchMetadataTest, SearchMetadata_AtMostOneFile) {
@@ -198,7 +198,7 @@ TEST_F(SearchMetadataTest, SearchMetadata_AtMostOneFile) {
   ASSERT_EQ(1U, result->size());
   EXPECT_EQ(
       base::FilePath::FromUTF8Unsafe(
-          "drive/Slash \xE2\x88\x95 in directory/Slash SubDir File.txt"),
+          "drive/root/Slash \xE2\x88\x95 in directory/Slash SubDir File.txt"),
       result->at(0).path);
 }
 
@@ -216,7 +216,7 @@ TEST_F(SearchMetadataTest, SearchMetadata_Directory) {
   EXPECT_EQ(DRIVE_FILE_OK, error);
   ASSERT_EQ(1U, result->size());
   EXPECT_EQ(
-      base::FilePath::FromUTF8Unsafe("drive/Directory 1"),
+      base::FilePath::FromUTF8Unsafe("drive/root/Directory 1"),
       result->at(0).path);
 }
 
@@ -234,7 +234,7 @@ TEST_F(SearchMetadataTest, SearchMetadata_HostedDocument) {
   EXPECT_EQ(DRIVE_FILE_OK, error);
   ASSERT_EQ(1U, result->size());
 
-  EXPECT_EQ(base::FilePath::FromUTF8Unsafe("drive/Document 1.gdoc"),
+  EXPECT_EQ(base::FilePath::FromUTF8Unsafe("drive/root/Document 1.gdoc"),
             result->at(0).path);
 }