Fixed a couple of typos and tweaked punctuation.

Change-Id: Ia662afb410051f747178486ac3c29e3ed1548725
Reviewed-on: https://chromium-review.googlesource.com/1089832Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Commit-Queue: David Bertoni <dbertoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#565064}

extensions/common/api/declarative_web_request.json

@@ -5,7 +5,7 @@
 [
   {
     "namespace": "declarativeWebRequest",
-    "description": "<em><strong>Note:</strong> this API is currently on hold, without concrete plans to move to stable.</em> Use the <code>chrome.declarativeWebRequest</code> API to intercept, block, or modify requests in-flight. It is significantly faster than the <a href='webRequest'><code>chrome.webRequest</code> API</a> because you can register rules that are evaluated in the browser rather than the JavaScript engine with reduces roundtrip latencies and allows higher efficiency.",
+    "description": "<em><strong>Note:</strong> this API is currently on hold, without concrete plans to move to stable.</em> Use the <code>chrome.declarativeWebRequest</code> API to intercept, block, or modify requests in-flight. It is significantly faster than the <a href='webRequest'><code>chrome.webRequest</code> API</a> because you can register rules that are evaluated in the browser rather than the JavaScript engine, which reduces roundtrip latencies and allows higher efficiency.",
     "types": [
       // TODO(devlin): The declarativeWebRequest API uses these enums as a form
       // of RTTI, but it's a rather verbose implementation. We should see if we

extensions/common/api/web_view_request.json

@@ -5,6 +5,6 @@
 [
   {
     "namespace": "webViewRequest",
-    "description": "Use the <code>chrome.webViewRequest</code> API to intercept, block, or modify requests in-flight. It is potentially faster than the <a href='webRequest'><code>chrome.webRequest</code> API</a> because you can register rules that are evaluated in the browser rather than the JavaScript engine with reduces roundtrip latencies and allows higher efficiency."
+    "description": "Use the <code>chrome.webViewRequest</code> API to intercept, block, or modify requests in-flight. It is potentially faster than the <a href='webRequest'><code>chrome.webRequest</code> API</a> because you can register rules that are evaluated in the browser rather than the JavaScript engine, which reduces roundtrip latencies and allows higher efficiency."
   }
 ]