[ios] EarlGrey test for PDF Mime type.

ios/web/public/test/earl_grey/web_view_matchers.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/web/public/test/earl_grey/web_view_matchers.h"
 
 #include <memory>
 
 #import <WebKit/WebKit.h>
 
 #include "base/mac/bind_objc_block.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/ios/wait_util.h"
 #include "base/values.h"
 #include "ios/testing/earl_grey/wait_util.h"
 
 namespace {
 
 // Script that returns document.body as a string.
 char kGetDocumentBodyJavaScript[] =
     "document.body ? document.body.textContent : null";
 // Script that tests presence of css selector.
 char kTestCssSelectorJavaScriptTemplate[] = "!!document.querySelector(\"%s\");";
 
-// Matcher for WKWebView which belogs to the given |webState|.
-id<GREYMatcher> webViewInWebState(web::WebState* web_state) {
-  MatchesBlock matches = ^BOOL(UIView* view) {
-    return [view isKindOfClass:[WKWebView class]] &&
-           [view isDescendantOfView:web_state->GetView()];
-  };
-
-  DescribeToBlock describe = ^(id<GREYDescription> description) {
-    [description appendText:@"web view in web state"];
-  };
-
-  return [[[GREYElementMatcherBlock alloc] initWithMatchesBlock:matches
-                                               descriptionBlock:describe]
-      autorelease];
-}
-
 // Synchronously returns the result of executed JavaScript.
 std::unique_ptr<base::Value> ExecuteScript(web::WebState* web_state,
                                            const std::string& script) {
   __block std::unique_ptr<base::Value> result;
   __block bool did_finish = false;
   web_state->ExecuteJavaScript(base::UTF8ToUTF16(script),
                                base::BindBlock(^(const base::Value* value) {
                                  if (value)
                                    result = value->CreateDeepCopy();
                                  did_finish = true;
@@ skipping 12 matching lines @@
   //   ../web_view_matchers.mm:ll:cc: error: call to implicitly-deleted copy
   //       constructor of 'std::unique_ptr<base::Value>'
   std::unique_ptr<base::Value> stack_result = std::move(result);
   return stack_result;
 }
 
 }  // namespace
 
 namespace web {
 
+id<GREYMatcher> webViewInWebState(web::WebState* webState) {
+  return [GREYMatchers matcherForWebViewInWebState:webState];
+}
+
 id<GREYMatcher> webViewContainingText(const std::string& text,
                                       web::WebState* webState) {
   return
       [GREYMatchers matcherForWebViewContainingText:text inWebState:webState];
 }
 
 id<GREYMatcher> webViewCssSelector(const std::string& selector,
                                    web::WebState* webState) {
   return
       [GREYMatchers matcherForWebWithCSSSelector:selector inWebState:webState];
 }
 
 id<GREYMatcher> webViewScrollView(web::WebState* webState) {
   return [GREYMatchers matcherForWebViewScrollViewInWebState:webState];
 }
 
 }  // namespace web
 
 @implementation GREYMatchers (WebViewAdditions)
 
++ (id<GREYMatcher>)matcherForWebViewInWebState:(web::WebState*)webState {
+  MatchesBlock matches = ^BOOL(UIView* view) {
+    return [view isKindOfClass:[WKWebView class]] &&
+           [view isDescendantOfView:webState->GetView()];
+  };
+
+  DescribeToBlock describe = ^(id<GREYDescription> description) {
+    [description appendText:@"web view in web state"];
+  };
+
+  return [[[GREYElementMatcherBlock alloc] initWithMatchesBlock:matches
+                                               descriptionBlock:describe]
+      autorelease];
+}
+
 + (id<GREYMatcher>)matcherForWebViewContainingText:(const std::string&)text
                                         inWebState:(web::WebState*)webState {
   std::string textCopyForBlock = text;
   MatchesBlock matches = ^BOOL(WKWebView*) {
     __block BOOL didSucceed = NO;
     NSDate* deadline =
         [NSDate dateWithTimeIntervalSinceNow:testing::kWaitForUIElementTimeout];
     while (([[NSDate date] compare:deadline] != NSOrderedDescending) &&
            !didSucceed) {
       std::unique_ptr<base::Value> value =
@@ skipping 63 matching lines @@
   DescribeToBlock describe = ^(id<GREYDescription> description) {
     [description appendText:@"web view scroll view"];
   };
 
   return [[[GREYElementMatcherBlock alloc] initWithMatchesBlock:matches
                                                descriptionBlock:describe]
       autorelease];
 }
 
 @end