Mojo: Avoid reporting Write failures to Connector client

BUG=340554
R=viettrungluu@chromium.org

Review URL: https://codereview.chromium.org/144063014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249490 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249490
Revert 249336 "[Android WebView] Stabilize AwZoomTest.testMagnif..."

> [Android WebView] Stabilize AwZoomTest.testMagnification...
> 
> The page that is used for testing is updated to have wide content, so
> Blink actually sets up the page scale to the specified 'initial-scale'.
> 
> After loading the page, the test now waits until the page scale becomes
> equal to the one specified in 'initial-scale' / 'minimum-scale', which ensures
> that the viewport meta tag has been fully processed. This should prevent
> the situation when the test discovers that the page can still be zoomed out.
> 
> I have encountered an issue with DCHECKs in
> InProcessViewRenderer::SetTotalRootLayerScrollOffset, and had to disable
> them.
> 
> BUG=340327,340648
> R=mkosiba@chromium.org
> 
> Review URL: https://codereview.chromium.org/143683005

TBR=mnaganov@chromium.org

Review URL: https://codereview.chromium.org/137383014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249491 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249491