Zoom browsertest: Relax precision of floating-point comparison

This CL relaxes the precision of a floating-point comparison made in the
zoom browsertest to avoid spurious test failures.

BUG=702269

Review-Url: https://codereview.chromium.org/2761473002
Cr-Commit-Position: refs/heads/master@{#457758}

content/browser/zoom_browsertest.cc

@@ -584,10 +584,9 @@ IN_PROC_BROWSER_TEST_F(IFrameZoomBrowserTest,
   EXPECT_TRUE(IsLastCommittedEntryOfPageType(web_contents(), PAGE_TYPE_NORMAL));
   EXPECT_EQ(redirect_url, web_contents()->GetLastCommittedURL());
 
-  EXPECT_NEAR(
-      kZoomFactorForRedirectedHost,
+  EXPECT_NEAR(kZoomFactorForRedirectedHost,
               GetMainFrameZoomFactor(web_contents(), main_frame_window_border),
-      0.001);
+              0.01);
 }
 #endif