update_engine: Remove the duplicate BlocksInExtents

This patch removes the duplicate BlocksInExtents from extent_utils.h and fixes
the remainder of the code to reflect this change.

BUG=none
TEST=unittests pass;

Change-Id: I76f5106f75072b20cd8f41f081b2f2b07aeac9a8
Reviewed-on: https://chromium-review.googlesource.com/812009
Commit-Ready: Amin Hassani <[email protected]>
Tested-by: Amin Hassani <[email protected]>
Reviewed-by: Ben Chan <[email protected]>
Reviewed-by: Alex Deymo <[email protected]>
Reviewed-by: Sen Jiang <[email protected]>
diff --git a/payload_generator/extent_utils_unittest.cc b/payload_generator/extent_utils_unittest.cc
index d470e7b..eef4385 100644
--- a/payload_generator/extent_utils_unittest.cc
+++ b/payload_generator/extent_utils_unittest.cc
@@ -54,23 +54,23 @@
 TEST(ExtentUtilsTest, BlocksInExtentsTest) {
   {
     vector<Extent> extents;
-    EXPECT_EQ(0U, BlocksInExtents(extents));
+    EXPECT_EQ(0U, utils::BlocksInExtents(extents));
     extents.push_back(ExtentForRange(0, 1));
-    EXPECT_EQ(1U, BlocksInExtents(extents));
+    EXPECT_EQ(1U, utils::BlocksInExtents(extents));
     extents.push_back(ExtentForRange(23, 55));
-    EXPECT_EQ(56U, BlocksInExtents(extents));
+    EXPECT_EQ(56U, utils::BlocksInExtents(extents));
     extents.push_back(ExtentForRange(1, 2));
-    EXPECT_EQ(58U, BlocksInExtents(extents));
+    EXPECT_EQ(58U, utils::BlocksInExtents(extents));
   }
   {
     google::protobuf::RepeatedPtrField<Extent> extents;
-    EXPECT_EQ(0U, BlocksInExtents(extents));
+    EXPECT_EQ(0U, utils::BlocksInExtents(extents));
     *extents.Add() = ExtentForRange(0, 1);
-    EXPECT_EQ(1U, BlocksInExtents(extents));
+    EXPECT_EQ(1U, utils::BlocksInExtents(extents));
     *extents.Add() = ExtentForRange(23, 55);
-    EXPECT_EQ(56U, BlocksInExtents(extents));
+    EXPECT_EQ(56U, utils::BlocksInExtents(extents));
     *extents.Add() = ExtentForRange(1, 2);
-    EXPECT_EQ(58U, BlocksInExtents(extents));
+    EXPECT_EQ(58U, utils::BlocksInExtents(extents));
   }
 }