Use approximate zoom level comparisons in test to accommodate N5X.

content/browser/iframe_zoom_browsertest.cc

Index: content/browser/iframe_zoom_browsertest.cc
diff --git a/content/browser/iframe_zoom_browsertest.cc b/content/browser/iframe_zoom_browsertest.cc
index b7ae8c8343b86f5235c0a0069eed79aa9a05b80d..f851cf42796ded52e94e4a078a97cb7c0d513556 100644
--- a/content/browser/iframe_zoom_browsertest.cc
+++ b/content/browser/iframe_zoom_browsertest.cc
@@ -206,9 +206,12 @@ IN_PROC_BROWSER_TEST_F(IFrameZoomBrowserTest, SubframesZoomProperly) {
     WaitAndCheckFrameZoom(msg_queue, frame_observers);
   }
 
-  EXPECT_DOUBLE_EQ(
+  // Make this comparison approximate for Nexus5X test;
+  // https://crbug.com/622858.
+  EXPECT_NEAR(
       new_zoom_factor,
-      GetMainFrameZoomFactor(web_contents(), main_frame_window_border));
+      GetMainFrameZoomFactor(web_contents(), main_frame_window_border),
+      0.01);
 }
 
 IN_PROC_BROWSER_TEST_F(IFrameZoomBrowserTest, SubframesDontZoomIndependently) {
@@ -363,9 +366,12 @@ IN_PROC_BROWSER_TEST_F(IFrameZoomBrowserTest, SiblingFramesZoom) {
     WaitAndCheckFrameZoom(msg_queue, frame_observers);
   }
 
-  EXPECT_DOUBLE_EQ(
+  // Make this comparison approximate for Nexus5X test;
+  // https://crbug.com/622858.
+  EXPECT_NEAR(
       new_zoom_factor,
-      GetMainFrameZoomFactor(web_contents(), main_frame_window_border));
+      GetMainFrameZoomFactor(web_contents(), main_frame_window_border),
+      0.01);
 }
 
 IN_PROC_BROWSER_TEST_F(IFrameZoomBrowserTest, SubframeRetainsZoomOnNavigation) {